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These are the user uploaded subtitles that are being translated: 1 00:00:00,420 --> 00:00:05,580 [Music] 2 00:00:06,480 --> 00:00:11,799 a total solar 3 00:00:08,840 --> 00:00:14,240 eclipse it's a rare and astonishing 4 00:00:11,799 --> 00:00:14,240 natural 5 00:00:16,119 --> 00:00:23,080 phenomenon seeing a total solar eclipse 6 00:00:18,520 --> 00:00:26,240 is like w you know you just never forget 7 00:00:23,080 --> 00:00:28,960 it solar eclipses have filled people 8 00:00:26,240 --> 00:00:31,720 with Wonder since the earliest 9 00:00:28,960 --> 00:00:33,559 times connects us with the past our 10 00:00:31,720 --> 00:00:36,680 predecessors they observe the same thing 11 00:00:33,559 --> 00:00:39,960 we see today whenever we look at an 12 00:00:36,680 --> 00:00:41,480 eclipse do you feel a connection I am a 13 00:00:39,960 --> 00:00:43,640 part of the universe I'm a part of the 14 00:00:41,480 --> 00:00:45,239 solar system I'm a part of this 15 00:00:43,640 --> 00:00:48,120 Celestial 16 00:00:45,239 --> 00:00:50,440 event can scientists seize these 17 00:00:48,120 --> 00:00:53,719 Precious Moments Of Darkness to explore 18 00:00:50,440 --> 00:00:57,840 a region of the sun normally 19 00:00:53,719 --> 00:01:00,320 invisible its outer atmosphere the solar 20 00:00:57,840 --> 00:01:03,399 Corona the solar Corona is one of the 21 00:01:00,320 --> 00:01:06,280 great key holes to peer into to truly 22 00:01:03,399 --> 00:01:08,439 understand the behavior of the sun 23 00:01:06,280 --> 00:01:11,159 behaviors like violent eruptions from 24 00:01:08,439 --> 00:01:14,320 the corona can cause huge solar 25 00:01:11,159 --> 00:01:15,320 storms the largest solar storms could 26 00:01:14,320 --> 00:01:17,439 really 27 00:01:15,320 --> 00:01:20,720 destabilize most of the world's 28 00:01:17,439 --> 00:01:23,040 technology plunging cities Into 29 00:01:20,720 --> 00:01:25,840 Darkness with the help of 30 00:01:23,040 --> 00:01:28,119 eclipses can researchers decode these 31 00:01:25,840 --> 00:01:31,920 dangerous blasts and one day learn to 32 00:01:28,119 --> 00:01:31,920 predict them 33 00:01:32,240 --> 00:01:37,200 it's completely extraordinary that 34 00:01:34,600 --> 00:01:40,280 nature gives us this opportunity to turn 35 00:01:37,200 --> 00:01:43,079 off the lights while Millions will enjoy 36 00:01:40,280 --> 00:01:46,119 the spectacle scientists are among the 37 00:01:43,079 --> 00:01:47,320 most Avid Eclipse Chasers studying the 38 00:01:46,119 --> 00:01:50,600 sun on the 39 00:01:47,320 --> 00:01:52,439 ground in the air and touching the 40 00:01:50,600 --> 00:01:55,799 corona 41 00:01:52,439 --> 00:01:58,840 itself their goal to better understand 42 00:01:55,799 --> 00:02:02,119 our most important Celestial 43 00:01:58,840 --> 00:02:06,240 neighbor Great American 44 00:02:02,119 --> 00:02:06,240 Eclipse right now on 45 00:02:07,010 --> 00:02:21,640 [Music] 46 00:02:18,959 --> 00:02:24,000 Nova as an american-based supplier to 47 00:02:21,640 --> 00:02:25,640 the construction industry Carl is 48 00:02:24,000 --> 00:02:27,480 committed to developing a diverse 49 00:02:25,640 --> 00:02:29,360 workplace that supports our employees 50 00:02:27,480 --> 00:02:31,319 advancement into the next generation of 51 00:02:29,360 --> 00:02:34,430 leaders from the manufacturing floor to 52 00:02:31,319 --> 00:02:36,599 the front office learn more at carle.com 53 00:02:34,430 --> 00:02:41,519 [Music] 54 00:02:36,599 --> 00:02:41,519 it's one of Nature's greatest 55 00:02:43,040 --> 00:02:48,239 spectacles the total solar eclipse is 56 00:02:46,440 --> 00:02:51,360 like the universe just walked up to your 57 00:02:48,239 --> 00:02:53,239 door and said hey here I am I'm Dynamic 58 00:02:51,360 --> 00:02:56,239 and I'm doing 59 00:02:53,239 --> 00:02:59,440 stuff and on April 8th 60 00:02:56,239 --> 00:03:01,640 2024 everybody in the lower 48 states 61 00:02:59,440 --> 00:03:02,760 can EXP experience at least a partial 62 00:03:01,640 --> 00:03:06,080 solar 63 00:03:02,760 --> 00:03:06,080 eclipse weather 64 00:03:09,519 --> 00:03:14,599 permitting for the 65 00:03:11,799 --> 00:03:15,879 31.5 million people who live in the path 66 00:03:14,599 --> 00:03:18,799 of 67 00:03:15,879 --> 00:03:21,600 totality the disc of the sun will 68 00:03:18,799 --> 00:03:23,280 completely 69 00:03:21,600 --> 00:03:26,560 [Music] 70 00:03:23,280 --> 00:03:29,760 disappear it's very emotional the world 71 00:03:26,560 --> 00:03:32,370 stops for a moment and you are 72 00:03:29,760 --> 00:03:40,940 surrounded by a completely different 73 00:03:32,370 --> 00:03:40,940 [Music] 74 00:03:43,720 --> 00:03:50,610 Universe a total solar eclipse only 75 00:03:46,799 --> 00:03:54,040 happens because of an astonishing 76 00:03:50,610 --> 00:03:57,879 [Music] 77 00:03:54,040 --> 00:04:01,560 coincidence the Earth Moon and Sun must 78 00:03:57,879 --> 00:04:03,959 perfectly align so the moon blocks the 79 00:04:01,560 --> 00:04:03,959 Sun's 80 00:04:04,280 --> 00:04:10,120 light the diameter of the Moon is around 81 00:04:07,159 --> 00:04:13,599 400 times smaller than that of the 82 00:04:10,120 --> 00:04:17,440 Sun but the moon also just so happens to 83 00:04:13,599 --> 00:04:20,120 be roughly 400 times closer to the Earth 84 00:04:17,440 --> 00:04:22,400 so it appears the same size in the sky 85 00:04:20,120 --> 00:04:25,680 as the 86 00:04:22,400 --> 00:04:27,880 sun when it passes in front of the sun 87 00:04:25,680 --> 00:04:30,039 it blocks the Sun's light casting a 88 00:04:27,880 --> 00:04:33,880 shadow on the earth that plunges es 89 00:04:30,039 --> 00:04:33,880 everywhere it passes into 90 00:04:36,080 --> 00:04:42,440 darkness that experience is surreal it 91 00:04:39,320 --> 00:04:47,880 is not like any other experience that a 92 00:04:42,440 --> 00:04:50,440 human being can have at 11:07 a.m. local 93 00:04:47,880 --> 00:04:52,800 time on Monday April 8th the darkest 94 00:04:50,440 --> 00:04:55,520 part of the Moon Shadow hits Mexico's 95 00:04:52,800 --> 00:04:59,479 Pacific Coast traveling at more than 96 00:04:55,520 --> 00:05:02,720 1500 mph the shadow is over 100 miles 97 00:04:59,479 --> 00:05:06,120 wide wide passing over Dallas at 1:40 98 00:05:02,720 --> 00:05:10,320 p.m. through Arkansas and 99 00:05:06,120 --> 00:05:15,400 Illinois over Indianapolis at 3:6 100 00:05:10,320 --> 00:05:17,560 p.m. and buffalo at 3:18 p.m. local time 101 00:05:15,400 --> 00:05:23,270 this Shadow will exit Continental North 102 00:05:17,560 --> 00:05:28,529 America at 438 p.m. after touching 15 US 103 00:05:23,270 --> 00:05:28,529 [Music] 104 00:05:28,639 --> 00:05:35,759 states it's an completely extraordinary 105 00:05:32,880 --> 00:05:38,479 coincidence that we get the angles just 106 00:05:35,759 --> 00:05:40,319 right to make this work if we were 107 00:05:38,479 --> 00:05:44,120 anywhere else in the solar system we 108 00:05:40,319 --> 00:05:44,120 would not have this perfect 109 00:05:44,800 --> 00:05:50,160 alignment and if the moon were any 110 00:05:47,160 --> 00:05:52,360 closer to Earth or any larger it would 111 00:05:50,160 --> 00:05:54,800 completely obscure the object the 112 00:05:52,360 --> 00:05:58,000 scientists are trying to 113 00:05:54,800 --> 00:06:01,639 study the sun's outer 114 00:05:58,000 --> 00:06:01,639 atmosphere it's called 115 00:06:19,980 --> 00:06:24,839 [Music] 116 00:06:29,610 --> 00:06:32,730 [Music] 117 00:06:41,490 --> 00:06:44,540 [Music] 118 00:07:00,479 --> 00:07:04,720 but scientists on the ground only get a 119 00:07:02,639 --> 00:07:06,440 chance to study the corona if they're in 120 00:07:04,720 --> 00:07:09,280 the right 121 00:07:06,440 --> 00:07:11,879 spot and if the weather 122 00:07:09,280 --> 00:07:14,000 cooperates the bane of every Eclipse 123 00:07:11,879 --> 00:07:16,919 Chaser is clouds and other weather that 124 00:07:14,000 --> 00:07:16,919 keep them from seeing 125 00:07:18,440 --> 00:07:23,039 totality statistically Mexico should 126 00:07:21,280 --> 00:07:24,720 have the clearest Skies along the path 127 00:07:23,039 --> 00:07:27,840 of totality during 128 00:07:24,720 --> 00:07:30,599 April with Texas a runner 129 00:07:27,840 --> 00:07:34,960 up but most places north of Missouri 130 00:07:30,599 --> 00:07:34,960 have less than 50% chance of clear 131 00:07:35,000 --> 00:07:39,759 skies standing on the center line of the 132 00:07:37,639 --> 00:07:42,199 Moon Shadow gives you the most time to 133 00:07:39,759 --> 00:07:42,199 view the 134 00:07:45,479 --> 00:07:51,440 corona the last total solar eclipse to 135 00:07:48,400 --> 00:07:54,840 pass across the US was in 136 00:07:51,440 --> 00:07:58,520 2017 it was an unforgettable spectacle 137 00:07:54,840 --> 00:08:00,800 witnessed by an estimated 215 million 138 00:07:58,520 --> 00:08:03,280 people 139 00:08:00,800 --> 00:08:06,319 but the maximum duration of totality was 140 00:08:03,280 --> 00:08:08,280 just 2 minutes and 42 141 00:08:06,319 --> 00:08:10,960 seconds in 142 00:08:08,280 --> 00:08:16,639 2024 the maximum duration is almost 143 00:08:10,960 --> 00:08:16,639 twice as long lasting 4 minutes and 28 144 00:08:19,080 --> 00:08:22,919 seconds during the eclipse that gives 145 00:08:21,360 --> 00:08:26,919 you a really unique opportunity to 146 00:08:22,919 --> 00:08:29,879 suddenly see this Corona and to study it 147 00:08:26,919 --> 00:08:31,639 scientifically the corona is less bright 148 00:08:29,879 --> 00:08:34,000 quite a lot less bright than the main 149 00:08:31,639 --> 00:08:35,719 part of the Sun so normally when you 150 00:08:34,000 --> 00:08:37,380 observe the sun you're not able to see 151 00:08:35,719 --> 00:08:40,539 that 152 00:08:37,380 --> 00:08:40,539 [Music] 153 00:08:41,120 --> 00:08:47,240 Corona the sun is so bright that until 154 00:08:44,680 --> 00:08:49,160 the moon completely covers it the only 155 00:08:47,240 --> 00:08:51,760 way to view it safely is to use 156 00:08:49,160 --> 00:08:53,520 certified solar filters or Eclipse 157 00:08:51,760 --> 00:08:56,160 viewing 158 00:08:53,520 --> 00:09:00,200 [Applause] 159 00:08:56,160 --> 00:09:02,079 glasses it's really exciting to watch 160 00:09:00,200 --> 00:09:04,680 but there is this real danger of 161 00:09:02,079 --> 00:09:05,600 blinding yourself or causing significant 162 00:09:04,680 --> 00:09:08,519 eye 163 00:09:05,600 --> 00:09:11,079 damage you've got to get these special 164 00:09:08,519 --> 00:09:14,279 eclipse glasses these special eyewear 165 00:09:11,079 --> 00:09:16,959 that block out 166 00:09:14,279 --> 00:09:19,120 99.999% of the sunlight and virtually 167 00:09:16,959 --> 00:09:21,120 all of the UV light that would really 168 00:09:19,120 --> 00:09:24,000 damage your 169 00:09:21,120 --> 00:09:27,040 eyes the human eye has a 170 00:09:24,000 --> 00:09:30,000 lens it helps focus light onto the 171 00:09:27,040 --> 00:09:33,040 retina which contains over 100 million 172 00:09:30,000 --> 00:09:36,000 light sensitive receptor 173 00:09:33,040 --> 00:09:37,880 cells these cells translate light into 174 00:09:36,000 --> 00:09:40,160 electrical signals that the brain can 175 00:09:37,880 --> 00:09:44,120 read as 176 00:09:40,160 --> 00:09:46,760 images staring directly at the Sun the 177 00:09:44,120 --> 00:09:49,519 focused beam from the lens becomes so 178 00:09:46,760 --> 00:09:50,360 intense it can easily burn the cells in 179 00:09:49,519 --> 00:09:54,760 the 180 00:09:50,360 --> 00:09:54,760 retina leaving a permanent blind 181 00:09:56,800 --> 00:10:02,640 spot eclipse glasses will prevent this 182 00:10:00,519 --> 00:10:07,360 but the magnifying effect of telescopes 183 00:10:02,640 --> 00:10:07,360 and binoculars can still destroy your 184 00:10:07,399 --> 00:10:13,320 eye so you see what that light did to 185 00:10:11,240 --> 00:10:15,079 these viewing glasses it would do the 186 00:10:13,320 --> 00:10:16,640 same thing to your eye you'd blind 187 00:10:15,079 --> 00:10:18,839 yourself 188 00:10:16,640 --> 00:10:21,399 instantly even if you're wearing 189 00:10:18,839 --> 00:10:23,200 certified solar viewing glasses you 190 00:10:21,399 --> 00:10:27,240 cannot look through a telescope with 191 00:10:23,200 --> 00:10:31,360 them unless there is a telescopic solar 192 00:10:27,240 --> 00:10:31,360 filter on the telescope itself 193 00:10:35,000 --> 00:10:40,079 during totality that total darkness you 194 00:10:37,360 --> 00:10:42,120 can actually take off your solar glasses 195 00:10:40,079 --> 00:10:44,560 and stare at the Sun for just a brief 196 00:10:42,120 --> 00:10:47,000 moment and appreciate that Darkness with 197 00:10:44,560 --> 00:10:48,800 that coronal light around it which is 198 00:10:47,000 --> 00:10:50,839 one of these amazing moments that you 199 00:10:48,800 --> 00:10:53,880 can only experience if you're actually 200 00:10:50,839 --> 00:10:57,399 witnessing total solar 201 00:10:53,880 --> 00:10:59,160 eclipse but on April 8th what about the 202 00:10:57,399 --> 00:11:02,959 people who are not lucky enough to live 203 00:10:59,160 --> 00:11:05,680 with thin or travel to the path of 204 00:11:02,959 --> 00:11:08,279 totality what can they 205 00:11:05,680 --> 00:11:11,079 see the good news is that nearly 206 00:11:08,279 --> 00:11:13,720 everyone in the US lower 48 has a chance 207 00:11:11,079 --> 00:11:17,519 to experience at least a partial 208 00:11:13,720 --> 00:11:20,680 [Music] 209 00:11:17,519 --> 00:11:23,680 eclipse you see roughly 10% more of the 210 00:11:20,680 --> 00:11:26,240 sun with every 200 mil of distance from 211 00:11:23,680 --> 00:11:26,240 the path of 212 00:11:27,800 --> 00:11:33,560 totality for example 213 00:11:30,839 --> 00:11:36,839 in Atlanta Georgia the moon covers just 214 00:11:33,560 --> 00:11:38,000 over 80% of the sun's disc in Los 215 00:11:36,839 --> 00:11:41,200 Angeles 216 00:11:38,000 --> 00:11:44,279 California around 217 00:11:41,200 --> 00:11:47,639 50% while in Portland Oregon just over 218 00:11:44,279 --> 00:11:47,639 20% of the sun is 219 00:11:48,200 --> 00:11:53,560 blocked imagine looking up at the sky 220 00:11:50,959 --> 00:11:55,880 with proper eye protection and noticing 221 00:11:53,560 --> 00:11:58,279 that part of the sun has gone missing 222 00:11:55,880 --> 00:12:00,360 that is the joy and wonder of a partial 223 00:11:58,279 --> 00:12:02,880 solar eclipse so even if you don't 224 00:12:00,360 --> 00:12:05,520 experience total darkness you were still 225 00:12:02,880 --> 00:12:08,590 experiencing this wondrous 226 00:12:05,520 --> 00:12:08,590 [Music] 227 00:12:08,760 --> 00:12:14,000 phenomenon but only the darkness of a 228 00:12:11,320 --> 00:12:15,519 total eclipse allows us to see the sun's 229 00:12:14,000 --> 00:12:18,680 outer 230 00:12:15,519 --> 00:12:18,680 atmosphere the 231 00:12:19,199 --> 00:12:24,760 corona the Corona's elusive pearly white 232 00:12:22,480 --> 00:12:28,240 cloud is made from a state of matter 233 00:12:24,760 --> 00:12:29,970 rarely found on Earth called 234 00:12:28,240 --> 00:12:31,199 plasma 235 00:12:29,970 --> 00:12:32,839 [Music] 236 00:12:31,199 --> 00:12:35,120 sometimes we call plasma the fourth 237 00:12:32,839 --> 00:12:37,120 state of matter there are many different 238 00:12:35,120 --> 00:12:40,079 states of matter but the ones we're 239 00:12:37,120 --> 00:12:42,560 custom to here on Earth are four solids 240 00:12:40,079 --> 00:12:45,000 liquids gases and 241 00:12:42,560 --> 00:12:45,920 plasmas if you heat a gas to a high 242 00:12:45,000 --> 00:12:48,279 enough 243 00:12:45,920 --> 00:12:49,760 temperature some of the electrons in its 244 00:12:48,279 --> 00:12:53,440 atoms fly 245 00:12:49,760 --> 00:12:56,680 off leaving positively charged 246 00:12:53,440 --> 00:13:01,240 ions this super hot mixture of ions and 247 00:12:56,680 --> 00:13:01,240 electrons is known as a plasma 248 00:13:59,279 --> 00:14:05,800 nuclei to fuse 249 00:14:02,079 --> 00:14:09,560 together creating helium and releasing 250 00:14:05,800 --> 00:14:09,560 vast amounts of energy as 251 00:14:10,680 --> 00:14:18,199 photons this nuclear fusion heats the 252 00:14:13,839 --> 00:14:18,199 core to 27 million de 253 00:14:18,279 --> 00:14:25,199 F from here the photons pass through the 254 00:14:21,839 --> 00:14:25,199 dense inner layer of the 255 00:14:25,759 --> 00:14:29,720 Sun the temperature of the plasma 256 00:14:28,320 --> 00:14:32,279 gradually drops 257 00:14:29,720 --> 00:14:35,660 as the photons reach the sun's visible 258 00:14:32,279 --> 00:14:38,820 surface known as the 259 00:14:35,660 --> 00:14:38,820 [Music] 260 00:14:38,880 --> 00:14:44,360 Photosphere here rising and sinking 261 00:14:41,560 --> 00:14:46,839 plasma forms a seething surface of light 262 00:14:44,360 --> 00:14:46,839 and dark 263 00:14:47,040 --> 00:14:52,920 areas around the Photosphere is the 264 00:14:50,160 --> 00:14:56,399 Corona the sun's outer atmosphere of 265 00:14:52,920 --> 00:14:58,120 extremely diffuse plasma extending far 266 00:14:56,399 --> 00:14:59,680 into 267 00:14:58,120 --> 00:15:01,639 space 268 00:14:59,680 --> 00:15:04,279 the corona is called the corona because 269 00:15:01,639 --> 00:15:07,279 it sort of has this Crown like shape and 270 00:15:04,279 --> 00:15:10,160 Corona in Latin is the word for 271 00:15:07,279 --> 00:15:12,880 Crown it's thin and wispy and hence very 272 00:15:10,160 --> 00:15:14,519 dim compared to the actual surface of 273 00:15:12,880 --> 00:15:18,279 the Sun so we need that surface to be 274 00:15:14,519 --> 00:15:18,279 blocked in order to see the 275 00:15:18,839 --> 00:15:25,399 corona but what more could science 276 00:15:21,560 --> 00:15:25,399 discover if we could get 277 00:15:28,120 --> 00:15:34,519 closer 278 00:15:30,920 --> 00:15:37,199 in 2018 NASA launches a pioneering space 279 00:15:34,519 --> 00:15:41,480 probe to do exactly 280 00:15:37,199 --> 00:15:43,040 that it's called The Parker solar Probe 281 00:15:41,480 --> 00:15:45,240 on board are instruments that will 282 00:15:43,040 --> 00:15:48,480 change our understanding of the Sun and 283 00:15:45,240 --> 00:15:48,480 study its extreme 284 00:15:49,040 --> 00:15:54,000 Behavior Parker solar probe was 285 00:15:51,240 --> 00:15:56,839 conceived in 286 00:15:54,000 --> 00:15:58,399 1958 there was a big long wait because 287 00:15:56,839 --> 00:16:00,000 our technology was trying to catch up 288 00:15:58,399 --> 00:16:03,279 with our dreams 289 00:16:00,000 --> 00:16:03,279 go Delta go 290 00:16:05,120 --> 00:16:09,880 PSP r68 look good in the full dress 291 00:16:11,160 --> 00:16:16,360 mode solar flares are large magnetic 292 00:16:14,319 --> 00:16:19,519 eruptions which can cause particles to 293 00:16:16,360 --> 00:16:21,360 come streaming towards the Earth we also 294 00:16:19,519 --> 00:16:23,680 have coronal mass ejections which are 295 00:16:21,360 --> 00:16:25,759 billions of tons of material equivalent 296 00:16:23,680 --> 00:16:28,240 to 80 million school buses racing 297 00:16:25,759 --> 00:16:30,120 towards us at millions of miles an hour 298 00:16:28,240 --> 00:16:34,040 that can do things like interfere with 299 00:16:30,120 --> 00:16:34,040 satellites or affect our power 300 00:16:34,160 --> 00:16:40,519 grid but even when the sun is quiet a 301 00:16:37,839 --> 00:16:43,040 lower intensity steady outflow of 302 00:16:40,519 --> 00:16:46,319 charged solar particles forms what's 303 00:16:43,040 --> 00:16:46,319 called solar 304 00:16:46,800 --> 00:16:51,959 wind it has been a mystery as to why 305 00:16:49,720 --> 00:16:54,480 that wind is accelerating constantly off 306 00:16:51,959 --> 00:16:54,480 the solar 307 00:16:57,399 --> 00:17:04,480 surface Parker solar probe is named for 308 00:17:00,240 --> 00:17:07,679 Eugene Parker a very dear man who had a 309 00:17:04,480 --> 00:17:11,199 theory about the origins of the solar 310 00:17:07,679 --> 00:17:14,600 wind that paper laid the groundwork for 311 00:17:11,199 --> 00:17:14,600 the study of the solar wind that we know 312 00:17:16,880 --> 00:17:25,559 today Parker is the fastest human-made 313 00:17:20,319 --> 00:17:25,559 object it'll reach speeds of 430,000 314 00:17:26,559 --> 00:17:33,039 mph a 4 and 1/2 in thick heat shield 315 00:17:30,080 --> 00:17:35,000 made from a carbon composite painted 316 00:17:33,039 --> 00:17:36,600 with heat reflecting ceramic paint 317 00:17:35,000 --> 00:17:39,240 protects the 318 00:17:36,600 --> 00:17:43,240 probe the top heat shield is going to 319 00:17:39,240 --> 00:17:45,600 experience 1300° C and in the back it's 320 00:17:43,240 --> 00:17:47,480 going to be room temperature it's 321 00:17:45,600 --> 00:17:49,799 important to have this huge temperature 322 00:17:47,480 --> 00:17:53,120 difference those instruments in the back 323 00:17:49,799 --> 00:17:56,200 need to operate in about room 324 00:17:53,120 --> 00:17:58,559 temperature since 2018 the probe's 325 00:17:56,200 --> 00:18:01,919 elongated orbit takes it progressively 326 00:17:58,559 --> 00:18:01,919 closer Clos and closer to the 327 00:18:04,320 --> 00:18:11,679 Sun and in December 2021 the team 328 00:18:08,120 --> 00:18:11,679 announces a major 329 00:18:13,720 --> 00:18:17,559 breakthrough Parker solar probe had 330 00:18:15,840 --> 00:18:20,559 touched the 331 00:18:17,559 --> 00:18:23,840 sun this is definitely a 332 00:18:20,559 --> 00:18:25,880 first this is the Monumental achievement 333 00:18:23,840 --> 00:18:27,919 of being able to say that we were inside 334 00:18:25,880 --> 00:18:29,960 the atmosphere of a 335 00:18:27,919 --> 00:18:32,080 star 336 00:18:29,960 --> 00:18:34,480 some scientists assumed the sun's 337 00:18:32,080 --> 00:18:37,120 atmosphere was smooth like a 338 00:18:34,480 --> 00:18:39,600 ball this is the boundary where the 339 00:18:37,120 --> 00:18:40,559 solar wind escapes the Sun's gravity and 340 00:18:39,600 --> 00:18:44,240 magnetic 341 00:18:40,559 --> 00:18:46,960 pull and Spills out into 342 00:18:44,240 --> 00:18:50,840 space but Parker's data shows it is 343 00:18:46,960 --> 00:18:53,480 undulating complex and 344 00:18:50,840 --> 00:18:56,440 dynamic as the probe barrels through the 345 00:18:53,480 --> 00:18:58,520 sun's atmosphere it runs into huge 346 00:18:56,440 --> 00:18:59,720 magnetic structures rising from the 347 00:18:58,520 --> 00:19:02,240 surface 348 00:18:59,720 --> 00:19:05,200 called coronal pseudo 349 00:19:02,240 --> 00:19:08,600 streamers these could be responsible for 350 00:19:05,200 --> 00:19:08,600 the rugged edge of the sun's 351 00:19:08,710 --> 00:19:12,240 [Music] 352 00:19:10,320 --> 00:19:14,000 atmosphere the particles of the solar 353 00:19:12,240 --> 00:19:16,840 wind are a 354 00:19:14,000 --> 00:19:18,400 plasma we are just beginning to learn 355 00:19:16,840 --> 00:19:19,440 more and more about how they're thrown 356 00:19:18,400 --> 00:19:22,559 out of the 357 00:19:19,440 --> 00:19:24,400 sun knowing the shape of that surface is 358 00:19:22,559 --> 00:19:26,440 really important to understand the 359 00:19:24,400 --> 00:19:27,840 formation and acceleration of the 360 00:19:26,440 --> 00:19:30,840 solarwind towards 361 00:19:27,840 --> 00:19:30,840 us 362 00:19:31,960 --> 00:19:36,960 the strength of the solar wind depends 363 00:19:34,320 --> 00:19:39,520 on the behavior of the sun's magnetic 364 00:19:36,960 --> 00:19:44,120 field which varies according to an 365 00:19:39,520 --> 00:19:47,480 11-year cycle called the solar 366 00:19:44,120 --> 00:19:49,280 cycle and according to that pattern the 367 00:19:47,480 --> 00:19:51,919 expected activity in 368 00:19:49,280 --> 00:19:53,800 2024 could make the April Eclipse 369 00:19:51,919 --> 00:19:55,000 particularly interesting for 370 00:19:53,800 --> 00:19:57,960 [Music] 371 00:19:55,000 --> 00:20:01,480 scientists in 2017 the sun was at a 372 00:19:57,960 --> 00:20:03,400 minimum in 2024 the difference is going 373 00:20:01,480 --> 00:20:05,440 to be that the sun will be very active 374 00:20:03,400 --> 00:20:07,679 it will be at a maximum and those 375 00:20:05,440 --> 00:20:10,960 maximums are where you get the 376 00:20:07,679 --> 00:20:12,640 show there could be a lot of activity 377 00:20:10,960 --> 00:20:15,320 going 378 00:20:12,640 --> 00:20:16,960 on my dream is that there is a actually 379 00:20:15,320 --> 00:20:20,280 a coronal mass ejection or flare going 380 00:20:16,960 --> 00:20:20,280 off that we can see that would be 381 00:20:27,760 --> 00:20:34,640 exciting solar eclipses have captivated 382 00:20:31,080 --> 00:20:37,440 communities in North America for 383 00:20:34,640 --> 00:20:38,840 centuries 3 hours Northwest of what is 384 00:20:37,440 --> 00:20:41,559 now 385 00:20:38,840 --> 00:20:42,240 Albuquerque this Canyon was once home to 386 00:20:41,559 --> 00:20:45,080 the 387 00:20:42,240 --> 00:20:48,470 Chans a Pueblo Native American people 388 00:20:45,080 --> 00:20:51,720 who farmed the land here until the 13th 389 00:20:48,470 --> 00:20:51,720 [Music] 390 00:20:52,400 --> 00:20:57,559 century John Jihadi believes they were 391 00:20:55,280 --> 00:21:00,720 closely attuned to the sun's movements 392 00:20:57,559 --> 00:21:00,720 and rhythms 393 00:21:01,120 --> 00:21:04,360 what makes the Pueblo communities 394 00:21:02,960 --> 00:21:06,679 different from our neighbors throughout 395 00:21:04,360 --> 00:21:09,600 this entire region is that they were 396 00:21:06,679 --> 00:21:13,400 permanent agrarian 397 00:21:09,600 --> 00:21:16,039 societies to be an agrarian society that 398 00:21:13,400 --> 00:21:19,360 takes a great deal of planning and 399 00:21:16,039 --> 00:21:21,360 problem solving if I plant too late I 400 00:21:19,360 --> 00:21:23,840 may not get a Bountiful Harvest if I 401 00:21:21,360 --> 00:21:28,000 plant too early maybe I'll get a late 402 00:21:23,840 --> 00:21:29,799 Frost so by being able to have an 403 00:21:28,000 --> 00:21:31,960 understanding of what time it means as 404 00:21:29,799 --> 00:21:34,240 it applies to the seasons is essential 405 00:21:31,960 --> 00:21:34,240 for 406 00:21:35,720 --> 00:21:43,440 survival at the top of nearby fajada but 407 00:21:39,000 --> 00:21:46,200 the Chans track the sun to measure the 408 00:21:43,440 --> 00:21:49,760 seasons there were some slabs that 409 00:21:46,200 --> 00:21:52,279 projects sunlight on a spiral on the 410 00:21:49,760 --> 00:21:53,880 Equinox the light hits a certain point 411 00:21:52,279 --> 00:21:56,159 in that and that's why it's called the 412 00:21:53,880 --> 00:21:58,679 Sund 413 00:21:56,159 --> 00:22:01,120 dagger the equinoxes Mark the most 414 00:21:58,679 --> 00:22:03,640 moments in the year when day and night 415 00:22:01,120 --> 00:22:06,400 are of roughly equal 416 00:22:03,640 --> 00:22:08,760 length knowing when these happen is 417 00:22:06,400 --> 00:22:11,159 vital for deciding when to plant and 418 00:22:08,760 --> 00:22:11,159 when to 419 00:22:14,240 --> 00:22:21,020 harvest but the Sund dagger is not the 420 00:22:17,080 --> 00:22:22,320 only evidence that Chans watch the skies 421 00:22:21,020 --> 00:22:24,919 [Music] 422 00:22:22,320 --> 00:22:27,440 closely there's also a mysterious 423 00:22:24,919 --> 00:22:29,080 Petroglyph here that suggests people on 424 00:22:27,440 --> 00:22:30,960 this continent may have witnessed 425 00:22:29,080 --> 00:22:33,760 eclipses that have passed across North 426 00:22:30,960 --> 00:22:33,760 America over 427 00:22:34,960 --> 00:22:41,279 centuries you see the circular uh symbol 428 00:22:38,200 --> 00:22:42,240 here perhaps that represents the sun uh 429 00:22:41,279 --> 00:22:45,159 in 430 00:22:42,240 --> 00:22:47,039 totality around the symbol we see lines 431 00:22:45,159 --> 00:22:49,640 or curvatures which perhaps we could 432 00:22:47,039 --> 00:22:51,520 interpret as maybe the corona of the Sun 433 00:22:49,640 --> 00:22:55,480 or the flares of the Sun that perhaps 434 00:22:51,520 --> 00:22:55,480 someone might see in the total 435 00:22:57,080 --> 00:23:00,919 eclipse scientists today can calculate 436 00:23:00,080 --> 00:23:03,919 that in 437 00:23:00,919 --> 00:23:05,880 1097 a total eclipse was visible here 438 00:23:03,919 --> 00:23:09,480 while the sun was nearing the peak of 439 00:23:05,880 --> 00:23:13,080 its solar cycle solar maximum when vast 440 00:23:09,480 --> 00:23:13,080 plumes would have extended from the 441 00:23:13,440 --> 00:23:17,840 Corona That's the tantalizing thing 442 00:23:15,679 --> 00:23:20,440 about it much like whenever we have an 443 00:23:17,840 --> 00:23:23,080 eclipse in our time and age people stop 444 00:23:20,440 --> 00:23:24,679 work people want to go outside to record 445 00:23:23,080 --> 00:23:27,520 this Monumental event because it's 446 00:23:24,679 --> 00:23:29,760 something unique and special it connects 447 00:23:27,520 --> 00:23:32,080 us with the past those are the same 448 00:23:29,760 --> 00:23:35,159 celestial bodies that our predecessors 449 00:23:32,080 --> 00:23:38,919 saw we're just really the same as they 450 00:23:35,159 --> 00:23:38,919 were we just have different 451 00:23:39,600 --> 00:23:44,799 tools there are 452 00:23:41,799 --> 00:23:47,520 574 recognized indigenous communities 453 00:23:44,799 --> 00:23:50,120 across the US with varying perspectives 454 00:23:47,520 --> 00:23:50,120 on solar 455 00:23:51,120 --> 00:23:56,720 eclipses the Navaho people consider an 456 00:23:53,919 --> 00:24:00,240 eclipse to be a moment of renewal that 457 00:23:56,720 --> 00:24:02,880 can be harmful if viewed 458 00:24:00,240 --> 00:24:04,159 Cherokee tradition says a giant frog is 459 00:24:02,880 --> 00:24:07,120 swallowing the 460 00:24:04,159 --> 00:24:09,760 sun and the Frog must be scared away to 461 00:24:07,120 --> 00:24:09,760 bring back the 462 00:24:15,039 --> 00:24:20,120 daylight for the Casual Observer the 463 00:24:17,960 --> 00:24:22,559 timing and location of eclipses can 464 00:24:20,120 --> 00:24:22,559 appear 465 00:24:22,720 --> 00:24:29,000 random after the April 2024 total solar 466 00:24:26,559 --> 00:24:33,200 eclipse it will be 20 years years until 467 00:24:29,000 --> 00:24:33,200 another is visible from the US lower 468 00:24:33,840 --> 00:24:39,919 48 however the period of time between 469 00:24:36,600 --> 00:24:44,000 total eclipses can be much 470 00:24:39,919 --> 00:24:48,399 shorter nature cooperating with Bal H 471 00:24:44,000 --> 00:24:51,039 elaborate preparations were made in 472 00:24:48,399 --> 00:24:52,919 1925 American astronomers watched a 473 00:24:51,039 --> 00:24:55,559 total eclipse as it passed from the 474 00:24:52,919 --> 00:24:58,559 middle of the country to the east 475 00:24:55,559 --> 00:25:00,720 coast some even flew in an Airship to 476 00:24:58,559 --> 00:25:03,159 make 477 00:25:00,720 --> 00:25:05,279 observations this fortunate generation 478 00:25:03,159 --> 00:25:07,520 had already seen two total solar 479 00:25:05,279 --> 00:25:11,130 eclipses in the previous 7 480 00:25:07,520 --> 00:25:16,180 years and would see another only 7 years 481 00:25:11,130 --> 00:25:16,180 [Music] 482 00:25:16,799 --> 00:25:24,480 later despite this apparent Randomness 483 00:25:20,480 --> 00:25:24,480 there is a complex pattern behind 484 00:25:25,240 --> 00:25:30,990 eclipses and astonishingly it was was 485 00:25:28,840 --> 00:25:35,760 discovered over 2,000 years 486 00:25:30,990 --> 00:25:37,880 [Music] 487 00:25:35,760 --> 00:25:42,760 ago ancient 488 00:25:37,880 --> 00:25:45,960 Babylon situated in what is now modern 489 00:25:42,760 --> 00:25:50,000 Iraq for centuries astronomers here 490 00:25:45,960 --> 00:25:50,000 recorded every occasion an eclipse was 491 00:25:50,440 --> 00:25:57,240 reported eventually around the 7th 492 00:25:53,039 --> 00:25:57,240 Century BC they spotted a 493 00:25:57,440 --> 00:26:02,240 pattern 494 00:26:00,080 --> 00:26:05,039 some very clever Babylonian astronomers 495 00:26:02,240 --> 00:26:06,880 figured out that solar eclipses are 496 00:26:05,039 --> 00:26:08,880 governed by a cycle and this is the 497 00:26:06,880 --> 00:26:12,039 so-call sah 498 00:26:08,880 --> 00:26:14,919 cycle today we know that a total solar 499 00:26:12,039 --> 00:26:19,080 eclipse will take place somewhere on 500 00:26:14,919 --> 00:26:19,080 Earth about once every 18 501 00:26:19,960 --> 00:26:26,000 months but with centuries of data the 502 00:26:23,039 --> 00:26:29,000 Babylonians realized there was a larger 503 00:26:26,000 --> 00:26:32,919 pattern every 18 years 504 00:26:29,000 --> 00:26:32,919 the time between eclipses would 505 00:26:33,039 --> 00:26:37,559 repeat they could actually make an 506 00:26:34,960 --> 00:26:39,720 entire calendar of eclipse predictions 507 00:26:37,559 --> 00:26:41,000 simply by projecting these past eclipses 508 00:26:39,720 --> 00:26:43,880 into the 509 00:26:41,000 --> 00:26:45,799 future astonishingly the Babylonian 510 00:26:43,880 --> 00:26:48,760 predictions were accurate to within an 511 00:26:45,799 --> 00:26:51,279 average of 4 512 00:26:48,760 --> 00:26:54,720 hours but they couldn't tell where in 513 00:26:51,279 --> 00:26:54,720 the world the eclipse would take 514 00:26:57,320 --> 00:27:03,240 place 515 00:27:00,070 --> 00:27:03,240 [Music] 516 00:27:03,279 --> 00:27:09,840 it would be another 2,000 years before 517 00:27:05,720 --> 00:27:11,919 astronomers figured out how to do 518 00:27:09,840 --> 00:27:15,080 [Music] 519 00:27:11,919 --> 00:27:17,679 that in 1715 the British astronomer 520 00:27:15,080 --> 00:27:19,960 Edmund heli became the first person to 521 00:27:17,679 --> 00:27:21,799 correctly predict a total solar eclipse 522 00:27:19,960 --> 00:27:24,080 by using the mathematics of his good 523 00:27:21,799 --> 00:27:26,520 friend Isaac Newton to calculate the 524 00:27:24,080 --> 00:27:28,520 orbit of the moon around the earth and 525 00:27:26,520 --> 00:27:30,320 therefore where its shadow would fall 526 00:27:28,520 --> 00:27:32,799 across the 527 00:27:30,320 --> 00:27:36,919 countryside in April 528 00:27:32,799 --> 00:27:39,080 1715 hi published this map forecasting 529 00:27:36,919 --> 00:27:41,640 that 2 weeks later an eclipse would pass 530 00:27:39,080 --> 00:27:45,039 over Great 531 00:27:41,640 --> 00:27:48,960 Britain hi had studied records of past 532 00:27:45,039 --> 00:27:51,960 eclipses and rediscovered the Sara cycle 533 00:27:48,960 --> 00:27:55,559 lost since ancient 534 00:27:51,960 --> 00:27:58,399 times this told him an eclipse was 535 00:27:55,559 --> 00:28:00,159 due he then used new accurate 536 00:27:58,399 --> 00:28:01,270 observations of the moon's orbit to 537 00:28:00,159 --> 00:28:06,320 calculate its 538 00:28:01,270 --> 00:28:08,760 [Music] 539 00:28:06,320 --> 00:28:11,159 path among the things he had to take 540 00:28:08,760 --> 00:28:12,880 into account was the unusual orbit of 541 00:28:11,159 --> 00:28:16,960 the 542 00:28:12,880 --> 00:28:16,960 moon which is tilted by 543 00:28:17,600 --> 00:28:24,930 5° so most of the time the Moon Shadow 544 00:28:20,480 --> 00:28:26,720 misses our planet which makes eclipses 545 00:28:24,930 --> 00:28:29,600 [Music] 546 00:28:26,720 --> 00:28:31,679 rare he also had to factor in the 547 00:28:29,600 --> 00:28:36,039 gravitational effect of the Earth and 548 00:28:31,679 --> 00:28:36,039 the sun which subtly Alters the moon's 549 00:28:36,720 --> 00:28:43,000 position just 28 years earlier Newton 550 00:28:40,519 --> 00:28:44,880 had proposed his new theory of gravity 551 00:28:43,000 --> 00:28:48,159 which allowed hie to accurately 552 00:28:44,880 --> 00:28:48,159 calculate the path of the 553 00:28:49,240 --> 00:28:54,720 eclipse from comparing the maps that 554 00:28:51,679 --> 00:28:57,200 Edmund hel made of the 1715 Eclipse both 555 00:28:54,720 --> 00:28:59,320 before and after based on the 556 00:28:57,200 --> 00:29:01,080 observations by the public public we 557 00:28:59,320 --> 00:29:03,679 find that he was actually within about 558 00:29:01,080 --> 00:29:06,440 20 M amazingly 559 00:29:03,679 --> 00:29:10,679 precise in H's estimate of the time of 560 00:29:06,440 --> 00:29:10,679 the eclipse was off by Just 4 561 00:29:13,519 --> 00:29:18,080 minutes today with more accurate 562 00:29:16,120 --> 00:29:20,279 observations of the moon's orbit 563 00:29:18,080 --> 00:29:23,320 astronomers can predict exactly where an 564 00:29:20,279 --> 00:29:27,159 eclipse will occur to the nearest 100 ft 565 00:29:23,320 --> 00:29:29,320 and when to the nearest tenth of a 566 00:29:27,159 --> 00:29:31,679 second 567 00:29:29,320 --> 00:29:37,039 This Is How They know the precise path 568 00:29:31,679 --> 00:29:37,039 of the 2024 total eclipse years ahead of 569 00:29:40,240 --> 00:29:45,799 time the dance between Earth Moon and 570 00:29:43,399 --> 00:29:48,960 Sun is 571 00:29:45,799 --> 00:29:52,320 predictable but the sun itself and its 572 00:29:48,960 --> 00:29:52,320 Corona are 573 00:29:52,880 --> 00:29:58,279 chaotic coronal mass ejections can 574 00:29:55,960 --> 00:30:00,760 disrupt our power supplies and destroy 575 00:29:58,279 --> 00:30:03,279 are Communications 576 00:30:00,760 --> 00:30:06,320 Technologies so learning how to predict 577 00:30:03,279 --> 00:30:08,960 coronal mass ejections is the Holy Grail 578 00:30:06,320 --> 00:30:08,960 of solar 579 00:30:09,919 --> 00:30:15,919 physics the sun is not some static 580 00:30:13,159 --> 00:30:19,279 unchanging ball of gas right it is 581 00:30:15,919 --> 00:30:22,159 ejecting parts of itself into the solar 582 00:30:19,279 --> 00:30:24,600 system the solar Corona is this Dynamic 583 00:30:22,159 --> 00:30:27,320 and everchanging and incredibly 584 00:30:24,600 --> 00:30:30,159 beautiful Halo of plasma around the sun 585 00:30:27,320 --> 00:30:33,000 it's so important in so many 586 00:30:30,159 --> 00:30:35,559 ways the lines of plasma in the sun's 587 00:30:33,000 --> 00:30:39,600 Corona are 588 00:30:35,559 --> 00:30:39,600 vast they would dwarf the 589 00:30:40,039 --> 00:30:45,120 Earth the force that drives their shape 590 00:30:42,880 --> 00:30:45,120 and 591 00:30:45,519 --> 00:30:49,919 motion is the sun's magnetic 592 00:30:50,480 --> 00:30:57,639 field Earth also has a magnetic 593 00:30:54,639 --> 00:30:59,960 field it's formed by our planet spinning 594 00:30:57,639 --> 00:31:01,320 liquid metal core and gives us our 595 00:30:59,960 --> 00:31:04,840 Magnetic 596 00:31:01,320 --> 00:31:04,840 North and South 597 00:31:06,039 --> 00:31:11,760 Poles but the sun has even stronger 598 00:31:09,159 --> 00:31:13,679 magnetic fields created by the movement 599 00:31:11,760 --> 00:31:16,840 of electrically charged particles 600 00:31:13,679 --> 00:31:16,840 churning beneath the 601 00:31:19,880 --> 00:31:25,399 surface because the plasma is moving 602 00:31:22,440 --> 00:31:27,039 faster in some regions these fields Bend 603 00:31:25,399 --> 00:31:30,039 and 604 00:31:27,039 --> 00:31:30,039 twist 605 00:31:30,480 --> 00:31:34,919 until some break through the sun's 606 00:31:32,559 --> 00:31:38,120 Photosphere into the 607 00:31:34,919 --> 00:31:41,000 corona where they form giant arches 608 00:31:38,120 --> 00:31:41,000 called coronal 609 00:31:42,360 --> 00:31:47,799 Loops because these magnetic fields trap 610 00:31:45,519 --> 00:31:50,279 electrically charged particles they show 611 00:31:47,799 --> 00:31:53,360 up as the bright lines and Loops of 612 00:31:50,279 --> 00:31:53,360 plasma we see in the 613 00:31:53,480 --> 00:32:00,039 corona but these field lines can 614 00:31:57,039 --> 00:32:00,039 snap 615 00:32:01,600 --> 00:32:06,240 the plasma is now free of its chains its 616 00:32:04,279 --> 00:32:07,880 anchors from the Sun and it's free to 617 00:32:06,240 --> 00:32:11,679 blast off into 618 00:32:07,880 --> 00:32:14,080 space in a coronal mass ejection the 619 00:32:11,679 --> 00:32:15,720 corona can throw a billion tons of 620 00:32:14,080 --> 00:32:20,559 plasma out into 621 00:32:15,720 --> 00:32:20,559 space at speeds of almost 2,000 622 00:32:21,320 --> 00:32:26,840 Ms when a coronal mass ejection heads 623 00:32:24,159 --> 00:32:28,799 our way Earth's Own magnetic field 624 00:32:26,840 --> 00:32:31,440 normally deflects it 625 00:32:28,799 --> 00:32:31,440 protecting the 626 00:32:33,240 --> 00:32:38,919 planet but a large coronal mass ejection 627 00:32:36,320 --> 00:32:41,600 can overwhelm our magnetic defenses with 628 00:32:38,919 --> 00:32:41,600 devastating 629 00:32:41,720 --> 00:32:47,559 consequences the coronal mass ejection 630 00:32:44,480 --> 00:32:50,760 can stream toward the Earth and disrupt 631 00:32:47,559 --> 00:32:53,559 our Technologies burn out power stations 632 00:32:50,760 --> 00:32:55,880 damage sensors on satellites wreaking 633 00:32:53,559 --> 00:32:59,919 havoc so we really need to be able to 634 00:32:55,880 --> 00:32:59,919 predict these things 635 00:33:02,720 --> 00:33:08,399 in June 2023 the Parker solar probe 636 00:33:06,080 --> 00:33:10,279 makes a giant leap towards understanding 637 00:33:08,399 --> 00:33:13,080 the mechanisms that project solar 638 00:33:10,279 --> 00:33:15,960 material towards 639 00:33:13,080 --> 00:33:18,679 us the probe flies close enough to the 640 00:33:15,960 --> 00:33:21,799 surface of the Sun to examine the 641 00:33:18,679 --> 00:33:21,799 origins of the solar 642 00:33:24,919 --> 00:33:31,639 wind the sun's surface is a super heated 643 00:33:28,320 --> 00:33:34,159 honeycomb of churning plasma cells each 644 00:33:31,639 --> 00:33:37,080 the size of 645 00:33:34,159 --> 00:33:39,399 Texas here magnetic plasma Loops get 646 00:33:37,080 --> 00:33:42,080 dragged around and 647 00:33:39,399 --> 00:33:44,120 Collide triggering explosions that 648 00:33:42,080 --> 00:33:48,559 release vast amounts of energy and 649 00:33:44,120 --> 00:33:48,559 catapult streams of plasma away from the 650 00:33:49,639 --> 00:33:55,559 Sun scientists have calculated there are 651 00:33:52,720 --> 00:33:55,559 thousands of these 652 00:33:55,679 --> 00:34:00,399 jetletso that they can give birth to the 653 00:33:58,399 --> 00:34:03,240 solar 654 00:34:00,399 --> 00:34:04,919 wind this was a theory as to how some of 655 00:34:03,240 --> 00:34:08,200 the solar wind was 656 00:34:04,919 --> 00:34:11,800 formed as Parker got closer it showed 657 00:34:08,200 --> 00:34:14,480 that this theory is actually at 658 00:34:11,800 --> 00:34:16,960 work when Eugene Parker proposed these 659 00:34:14,480 --> 00:34:21,240 theories they seemed like science 660 00:34:16,960 --> 00:34:21,240 fiction and now they're becoming science 661 00:34:23,000 --> 00:34:28,480 fact soon a new NASA mission called 662 00:34:26,240 --> 00:34:31,240 punch will launch four cameras that will 663 00:34:28,480 --> 00:34:33,320 orbit Earth to continuously map not only 664 00:34:31,240 --> 00:34:35,760 how the solar wind flows towards and 665 00:34:33,320 --> 00:34:39,280 around our planet but also across the 666 00:34:35,760 --> 00:34:41,679 entire solar system so that's from space 667 00:34:39,280 --> 00:34:45,280 Craig DeForest leads the team it doesn't 668 00:34:41,679 --> 00:34:47,679 rule out the four cameras separate out 669 00:34:45,280 --> 00:34:49,879 all the way around the world looking out 670 00:34:47,679 --> 00:34:51,399 in different directions uh we 671 00:34:49,879 --> 00:34:55,079 synchronize them so they're snapping 672 00:34:51,399 --> 00:34:56,839 pictures at the exact same time to image 673 00:34:55,079 --> 00:34:59,599 those clouds of material in all 674 00:34:56,839 --> 00:35:02,119 directions in three dimensions as they 675 00:34:59,599 --> 00:35:04,240 streak across the solar system sweeping 676 00:35:02,119 --> 00:35:07,440 out and past 677 00:35:04,240 --> 00:35:09,920 us with a system like punch we would be 678 00:35:07,440 --> 00:35:12,160 able to track the events all the way 679 00:35:09,920 --> 00:35:15,839 across the solar system this is 680 00:35:12,160 --> 00:35:20,560 revolutionary we expect to be able to 681 00:35:15,839 --> 00:35:20,560 greatly improve forecasting of space 682 00:35:25,480 --> 00:35:32,359 weather back on Earth in October 2023 683 00:35:30,079 --> 00:35:35,119 Craig gears up to test a new version of 684 00:35:32,359 --> 00:35:37,800 an old instrument that for the first 685 00:35:35,119 --> 00:35:40,680 time could make the sun's Elusive and 686 00:35:37,800 --> 00:35:42,400 violent Corona visible to any of us at 687 00:35:40,680 --> 00:35:46,240 any 688 00:35:42,400 --> 00:35:50,119 time it's called a coronograph 689 00:35:46,240 --> 00:35:53,520 what a coronograph does is interpose a 690 00:35:50,119 --> 00:35:56,040 man-made object in front of a telescope 691 00:35:53,520 --> 00:35:58,280 so that we can block out the sun just 692 00:35:56,040 --> 00:36:00,400 like the moon would do and see the 693 00:35:58,280 --> 00:36:04,680 corona around 694 00:36:00,400 --> 00:36:04,680 it but coronagraphs have 695 00:36:05,119 --> 00:36:09,480 limitations it's almost impossible to 696 00:36:07,520 --> 00:36:11,720 block enough of the Sun's light to see 697 00:36:09,480 --> 00:36:14,359 the corona unless they are either 698 00:36:11,720 --> 00:36:17,599 incredibly precise and 699 00:36:14,359 --> 00:36:20,319 expensive or they are deployed in space 700 00:36:17,599 --> 00:36:22,359 above the Earth's light scattering 701 00:36:20,319 --> 00:36:24,319 atmosphere allows the camera to see a 702 00:36:22,359 --> 00:36:26,079 perfectly uniform Field view the team 703 00:36:24,319 --> 00:36:28,760 hopes to produce the first ever 704 00:36:26,079 --> 00:36:31,839 coronograph that anyone can download 3D 705 00:36:28,760 --> 00:36:34,520 print and fit onto a telescope at home 706 00:36:31,839 --> 00:36:37,000 there you there it is perfect we expect 707 00:36:34,520 --> 00:36:39,000 to refine the design and be able to 708 00:36:37,000 --> 00:36:40,839 publish a design that will access the 709 00:36:39,000 --> 00:36:43,880 Corona on any sunny 710 00:36:40,839 --> 00:36:46,520 day to help them test this device the 711 00:36:43,880 --> 00:36:50,400 team has chosen a special 712 00:36:46,520 --> 00:36:54,599 day over Albuquerque New Mexico today 713 00:36:50,400 --> 00:36:54,599 there will be an annular solar 714 00:36:56,640 --> 00:37:01,040 eclipse 715 00:36:58,720 --> 00:37:04,839 the moon's orbit is not a perfect 716 00:37:01,040 --> 00:37:07,119 circle it's very slightly 717 00:37:04,839 --> 00:37:10,160 elliptical so when the moon is farther 718 00:37:07,119 --> 00:37:13,319 from the earth it appears 719 00:37:10,160 --> 00:37:17,240 smaller and doesn't completely cover the 720 00:37:13,319 --> 00:37:20,839 sun creating an annular Eclipse also 721 00:37:17,240 --> 00:37:20,839 known as a ring of fire 722 00:37:22,400 --> 00:37:27,880 Eclipse we have a special case where the 723 00:37:24,800 --> 00:37:30,160 moon does 90% of the work the sky is 724 00:37:27,880 --> 00:37:30,160 much 725 00:37:32,880 --> 00:37:38,400 darker by complete chance the annular 726 00:37:35,800 --> 00:37:41,400 Eclipse coincides with the Albuquerque 727 00:37:38,400 --> 00:37:44,520 International Balloon Fiesta the world's 728 00:37:41,400 --> 00:37:44,520 largest gathering of 729 00:37:45,880 --> 00:37:52,200 balloonists today we have 550 balloons 730 00:37:49,359 --> 00:37:53,760 in this beautiful Albuquerque Sky we'll 731 00:37:52,200 --> 00:37:56,800 have somewhere between 732 00:37:53,760 --> 00:37:59,359 800,000 and 1 million come through our 733 00:37:56,800 --> 00:38:01,040 gates we just got really lucky when we 734 00:37:59,359 --> 00:38:04,440 saw that the eclipse was going to 735 00:38:01,040 --> 00:38:06,680 coincide with our event we couldn't be 736 00:38:04,440 --> 00:38:08,880 happier I think the crowd is going to be 737 00:38:06,680 --> 00:38:10,440 in awe of getting to witness this once 738 00:38:08,880 --> 00:38:12,720 in a-lifetime event because it's not 739 00:38:10,440 --> 00:38:14,119 happened here before we just have to 740 00:38:12,720 --> 00:38:16,280 thank mother nature and the calendar 741 00:38:14,119 --> 00:38:19,000 lining up 742 00:38:16,280 --> 00:38:23,400 together so we are about to have first 743 00:38:19,000 --> 00:38:25,050 Contact 3 2 one oh yeah you see it right 744 00:38:23,400 --> 00:38:26,560 on the top boom there's a 745 00:38:25,050 --> 00:38:28,680 [Music] 746 00:38:26,560 --> 00:38:30,880 bite 747 00:38:28,680 --> 00:38:35,560 as the moon begins to line up with the 748 00:38:30,880 --> 00:38:38,680 sun everything starts to get 749 00:38:35,560 --> 00:38:42,040 weird because the sun is turning into a 750 00:38:38,680 --> 00:38:43,640 crescent Sun the Shadows change shape so 751 00:38:42,040 --> 00:38:47,119 is one of the most Eerie things about an 752 00:38:43,640 --> 00:38:47,119 eclipse is the Shadows changing 753 00:38:47,750 --> 00:38:51,860 [Music] 754 00:38:56,520 --> 00:38:59,550 shape all right we have 755 00:38:59,200 --> 00:39:03,560 [Music] 756 00:38:59,550 --> 00:39:06,760 [Applause] 757 00:39:03,560 --> 00:39:10,240 annularity all right 758 00:39:06,760 --> 00:39:14,000 so this is so 759 00:39:10,240 --> 00:39:14,000 beautiful it's a perfect 760 00:39:15,400 --> 00:39:22,079 circle what a spectacular awesome 761 00:39:19,200 --> 00:39:24,720 site thank you mother nature thank you 762 00:39:22,079 --> 00:39:28,480 mother nature and thank you Balloon 763 00:39:24,720 --> 00:39:31,480 Fiesta this is phenomenal 764 00:39:28,480 --> 00:39:33,640 the visceral reactions that you feel 765 00:39:31,480 --> 00:39:36,599 during the approach and during the 766 00:39:33,640 --> 00:39:39,640 annularity itself are it's very hard to 767 00:39:36,599 --> 00:39:39,640 describe it's it's very 768 00:39:41,000 --> 00:39:46,000 moving annular eclipses are phenomenal 769 00:39:44,440 --> 00:39:48,820 if you can ever get to the path of a 770 00:39:46,000 --> 00:39:50,520 total solar eclipse it is incredible and 771 00:39:48,820 --> 00:39:52,960 [Music] 772 00:39:50,520 --> 00:39:55,200 life-changing we won't know until we 773 00:39:52,960 --> 00:39:57,880 analyze the data that we got today just 774 00:39:55,200 --> 00:40:00,359 how much of the corona we saw so if you 775 00:39:57,880 --> 00:40:01,960 look if I turn this thing on and off 776 00:40:00,359 --> 00:40:05,880 people are going 777 00:40:01,960 --> 00:40:07,839 to so this is our coronograph look at 778 00:40:05,880 --> 00:40:10,200 that they seem to line up so I think 779 00:40:07,839 --> 00:40:12,599 we've seen the corona yeah I mean I 780 00:40:10,200 --> 00:40:14,920 think that there's a really good 781 00:40:12,599 --> 00:40:18,640 possibility what we're looking at is the 782 00:40:14,920 --> 00:40:21,400 very first data and what we found is yes 783 00:40:18,640 --> 00:40:23,800 it looks to me like it's the 784 00:40:21,400 --> 00:40:26,440 corona we're not done yet we have more 785 00:40:23,800 --> 00:40:29,440 analysis to do we've really just 786 00:40:26,440 --> 00:40:29,440 begun 787 00:40:32,000 --> 00:40:37,319 during the April 2024 total eclipse 788 00:40:35,319 --> 00:40:39,599 amateur astronomers will work with 789 00:40:37,319 --> 00:40:42,640 Scientists to study how the corona 790 00:40:39,599 --> 00:40:45,560 changes in real 791 00:40:42,640 --> 00:40:47,520 time citizen scientists or Community 792 00:40:45,560 --> 00:40:49,480 participants they're going to get 793 00:40:47,520 --> 00:40:52,040 training and we're going to deploy them 794 00:40:49,480 --> 00:40:54,079 all along the eclipse path from the very 795 00:40:52,040 --> 00:40:56,680 edge of the United States in Texas all 796 00:40:54,079 --> 00:40:58,119 the way to the other Edge in Maine where 797 00:40:56,680 --> 00:41:00,440 they will be able to to observe the 798 00:40:58,119 --> 00:41:02,680 eclipse Shadow passing over each one of 799 00:41:00,440 --> 00:41:05,079 them and that way we can put together 800 00:41:02,680 --> 00:41:07,880 all of their observations into one 801 00:41:05,079 --> 00:41:09,720 hourong movie of 802 00:41:07,880 --> 00:41:11,599 totality and so that gives us 803 00:41:09,720 --> 00:41:15,880 information about how the corona is 804 00:41:11,599 --> 00:41:19,000 evolving and changing over a period of 1 805 00:41:15,880 --> 00:41:21,599 hour these citizen scientists may play a 806 00:41:19,000 --> 00:41:24,400 role in solving one of the most enduring 807 00:41:21,599 --> 00:41:24,400 Mysteries of the 808 00:41:26,359 --> 00:41:29,359 corona 809 00:41:29,680 --> 00:41:36,319 [Music] 810 00:41:33,040 --> 00:41:38,800 in the late 1800s a team of astronomers 811 00:41:36,319 --> 00:41:41,319 studying the corona during an eclipse 812 00:41:38,800 --> 00:41:44,000 made a surprising 813 00:41:41,319 --> 00:41:45,520 discovery in 1869 there was a total 814 00:41:44,000 --> 00:41:47,599 solar eclipse visible from the United 815 00:41:45,520 --> 00:41:49,839 States Charles young an astronomer at 816 00:41:47,599 --> 00:41:51,640 Dartmouth College LED an expedition to 817 00:41:49,839 --> 00:41:54,240 Iowa in order to use the brand new 818 00:41:51,640 --> 00:41:57,440 technology of 819 00:41:54,240 --> 00:41:59,200 spectroscopy a spectroscope uses a prism 820 00:41:57,440 --> 00:42:03,280 to divide white light into its 821 00:41:59,200 --> 00:42:03,280 constituent colors or 822 00:42:03,880 --> 00:42:09,800 wavelengths if you heat an element 823 00:42:06,680 --> 00:42:12,319 enough its gas emits light in very 824 00:42:09,800 --> 00:42:12,319 specific 825 00:42:12,680 --> 00:42:16,680 wavelengths viewed through a 826 00:42:14,400 --> 00:42:20,119 spectroscope each element has its own 827 00:42:16,680 --> 00:42:20,119 unique pattern of colored 828 00:42:26,319 --> 00:42:30,640 lines 829 00:42:28,200 --> 00:42:32,079 by pointing a spectroscope at the corona 830 00:42:30,640 --> 00:42:34,800 during an 831 00:42:32,079 --> 00:42:37,000 eclipse young hoped to find the elements 832 00:42:34,800 --> 00:42:37,000 it 833 00:42:37,200 --> 00:42:42,760 contained what he discovered was a 834 00:42:39,880 --> 00:42:46,680 mysterious spectral line no one had ever 835 00:42:42,760 --> 00:42:46,680 seen coming from any element on 836 00:42:46,800 --> 00:42:53,000 Earth he noticed that it was a special 837 00:42:49,480 --> 00:42:55,400 Green Line green light emitted from the 838 00:42:53,000 --> 00:42:57,599 Corona and since it matched up with no 839 00:42:55,400 --> 00:42:59,839 known element people naturally assumed 840 00:42:57,599 --> 00:43:02,000 that there must be some new element not 841 00:42:59,839 --> 00:43:04,640 existing here on the earth that had been 842 00:43:02,000 --> 00:43:07,960 discovered scientists gave this strange 843 00:43:04,640 --> 00:43:11,160 new element a name coronium because it 844 00:43:07,960 --> 00:43:11,160 had been discovered in the 845 00:43:11,760 --> 00:43:15,920 Corona for the next 70 years astronomers 846 00:43:14,280 --> 00:43:18,440 sought to identify what this mystery 847 00:43:15,920 --> 00:43:20,720 element might be what they found in fact 848 00:43:18,440 --> 00:43:23,520 was that it was a known element iron 849 00:43:20,720 --> 00:43:26,240 iron at such a high temperature that 13 850 00:43:23,520 --> 00:43:30,480 of its 26 electrons had been ripped 851 00:43:26,240 --> 00:43:32,559 away astonishingly the corona was so hot 852 00:43:30,480 --> 00:43:35,160 it had turned the metal iron into a 853 00:43:32,559 --> 00:43:38,480 plasma with a spectral line completely 854 00:43:35,160 --> 00:43:38,480 different from Iron found on 855 00:43:40,040 --> 00:43:45,559 Earth only under extraordinarily high 856 00:43:42,920 --> 00:43:48,000 temperatures is this ever possible so 857 00:43:45,559 --> 00:43:50,520 when you see a total solar eclipse and 858 00:43:48,000 --> 00:43:52,079 you witness that amazing Corona you are 859 00:43:50,520 --> 00:43:54,240 seeing the hottest thing you will ever 860 00:43:52,079 --> 00:43:57,720 see with the human 861 00:43:54,240 --> 00:44:01,280 eye the corona is about 2 millon milon 862 00:43:57,720 --> 00:44:04,200 de and that's a problem the surface of 863 00:44:01,280 --> 00:44:07,559 the Sun is only about 10,000 864 00:44:04,200 --> 00:44:09,520 de how can the sun's outer atmosphere be 865 00:44:07,559 --> 00:44:14,760 hotter than its 866 00:44:09,520 --> 00:44:14,760 surface it seems to defy basic laws of 867 00:44:17,760 --> 00:44:23,680 physics back in 2017 in search of 868 00:44:20,960 --> 00:44:26,640 answers scientists came up with a plan 869 00:44:23,680 --> 00:44:30,480 to not only extend viewing time but also 870 00:44:26,640 --> 00:44:33,839 avoid any clouds that might obscure the 871 00:44:30,480 --> 00:44:36,599 eclipse Amir caspy and his team fly two 872 00:44:33,839 --> 00:44:37,760 NASA jet aircraft fitted with telescopes 873 00:44:36,599 --> 00:44:39,960 above the 874 00:44:37,760 --> 00:44:42,440 clouds track the eclipse from an 875 00:44:39,960 --> 00:44:45,520 altitude of 50,000 876 00:44:42,440 --> 00:44:48,200 ft by getting above 90% of the 877 00:44:45,520 --> 00:44:49,920 atmosphere above 90% of the water vapor 878 00:44:48,200 --> 00:44:51,800 we can access wavelengths that we 879 00:44:49,920 --> 00:44:54,319 normally wouldn't be able to on the 880 00:44:51,800 --> 00:44:56,440 ground they hop their data might shed 881 00:44:54,319 --> 00:44:58,880 light on why the corona is so much 882 00:44:56,440 --> 00:45:01,000 hotter than the surface of the 883 00:44:58,880 --> 00:45:02,480 Sun the idea is that they pick up the 884 00:45:01,000 --> 00:45:04,920 track and follow the track straight 885 00:45:02,480 --> 00:45:06,800 through during the entire the Jets could 886 00:45:04,920 --> 00:45:10,040 not keep up with the eclipse Shadow 887 00:45:06,800 --> 00:45:11,960 traveling around 1,500 mph more than 888 00:45:10,040 --> 00:45:15,000 three times as fast as the 889 00:45:11,960 --> 00:45:17,440 planes but by flying two Jets along the 890 00:45:15,000 --> 00:45:21,200 path of the eclipse Amir extended the 891 00:45:17,440 --> 00:45:23,680 viewing time to over 7 892 00:45:21,200 --> 00:45:26,240 Minutes the instruments aboard amir's 893 00:45:23,680 --> 00:45:30,000 Jets could image the infrared radiation 894 00:45:26,240 --> 00:45:30,000 emitted by the Cor Cora in high 895 00:45:30,839 --> 00:45:35,599 resolution infrared radiation is special 896 00:45:34,240 --> 00:45:37,960 because it allows us to probe the 897 00:45:35,599 --> 00:45:40,480 Corona's magnetic field and the Corona's 898 00:45:37,960 --> 00:45:42,160 magnetic field is critically important 899 00:45:40,480 --> 00:45:44,680 for pretty much everything that happens 900 00:45:42,160 --> 00:45:44,680 in the Solar 901 00:45:45,839 --> 00:45:50,520 Corona the infrared images of magnetic 902 00:45:48,640 --> 00:45:52,319 structures in the corona collected by 903 00:45:50,520 --> 00:45:56,040 air in his team in 904 00:45:52,319 --> 00:45:57,960 2017 gave some unexpected 905 00:45:56,040 --> 00:46:00,720 results one of the things that we 906 00:45:57,960 --> 00:46:03,119 noticed is that structures called 907 00:46:00,720 --> 00:46:05,160 prominences this is material from the 908 00:46:03,119 --> 00:46:08,440 solar chromosphere the layer just above 909 00:46:05,160 --> 00:46:13,240 the surface its temperature is only 10 910 00:46:08,440 --> 00:46:15,880 20,000 de C other structures what we 911 00:46:13,240 --> 00:46:18,359 call Active regions those are at 912 00:46:15,880 --> 00:46:20,720 millions of degrees and we saw that 913 00:46:18,359 --> 00:46:22,920 prominences and active regions were 914 00:46:20,720 --> 00:46:25,640 glowing with approximately equal 915 00:46:22,920 --> 00:46:28,680 brightness in the infrared 916 00:46:25,640 --> 00:46:31,640 images that's something that boggled our 917 00:46:28,680 --> 00:46:33,480 minds because they are a 100 times 918 00:46:31,640 --> 00:46:37,000 different in temperature so how could 919 00:46:33,480 --> 00:46:39,240 they be glowing at the same 920 00:46:37,000 --> 00:46:41,520 intensity what are the physical 921 00:46:39,240 --> 00:46:45,079 mechanisms that cause these dramatically 922 00:46:41,520 --> 00:46:48,559 different regions to emit infrared 923 00:46:45,079 --> 00:46:50,599 equally 2024 gives us a new opportunity 924 00:46:48,559 --> 00:46:53,880 to study the Corona and answer some of 925 00:46:50,599 --> 00:46:53,880 the questions that we opened in 926 00:46:54,440 --> 00:47:00,800 2017 in 2024 can new instruments making 927 00:46:58,960 --> 00:47:03,920 even more detailed measurements of 928 00:47:00,800 --> 00:47:05,599 infrared radiation help us explain these 929 00:47:03,920 --> 00:47:08,200 surprising 930 00:47:05,599 --> 00:47:12,400 observations here's your incoming Vector 931 00:47:08,200 --> 00:47:14,480 right Jenna Samra is looking for Clues 932 00:47:12,400 --> 00:47:16,680 she and her team have built their own 933 00:47:14,480 --> 00:47:19,359 spectroscope that also measures the 934 00:47:16,680 --> 00:47:22,000 exact brightness of the infrared 935 00:47:19,359 --> 00:47:25,119 light and they'll install this sensitive 936 00:47:22,000 --> 00:47:28,960 equipment on board a Gulf Stream 5 jet 937 00:47:25,119 --> 00:47:28,960 to track the eclipse from the air 938 00:47:29,200 --> 00:47:33,640 models suggest there are infrared 939 00:47:31,200 --> 00:47:36,480 wavelengths where the corona emits light 940 00:47:33,640 --> 00:47:38,640 that we've not yet detected with 941 00:47:36,480 --> 00:47:41,079 instruments these could eventually help 942 00:47:38,640 --> 00:47:44,720 us measure the Corona's magnetic field 943 00:47:41,079 --> 00:47:47,200 which stores the energy that heats the 944 00:47:44,720 --> 00:47:49,319 corona physicists have predicted a 945 00:47:47,200 --> 00:47:52,720 number of these bright wavelengths 946 00:47:49,319 --> 00:47:55,880 called emission lines and our Spectrum 947 00:47:52,720 --> 00:47:58,160 should Encompass about 20 of these and 948 00:47:55,880 --> 00:48:01,640 about half of these have never been seen 949 00:47:58,160 --> 00:48:04,839 before Jenna wants to find those missing 950 00:48:01,640 --> 00:48:06,480 lines but what if they aren't there oh 951 00:48:04,839 --> 00:48:07,920 okay would that mean the physicist's 952 00:48:06,480 --> 00:48:10,760 predictions are 953 00:48:07,920 --> 00:48:12,359 wrong for now they're just at the start 954 00:48:10,760 --> 00:48:14,319 of their 955 00:48:12,359 --> 00:48:16,559 investigation our instrument is going to 956 00:48:14,319 --> 00:48:19,079 be a stepping stone for understanding 957 00:48:16,559 --> 00:48:22,800 the the physics of the corona including 958 00:48:19,079 --> 00:48:25,680 predicting solar flares and coronal mass 959 00:48:22,800 --> 00:48:28,800 ejections but in a jet moving at over 960 00:48:25,680 --> 00:48:31,000 500 mph power how can you keep the 961 00:48:28,800 --> 00:48:34,000 eclipse perfectly centered so the 962 00:48:31,000 --> 00:48:35,880 spectroscope can take reliable 963 00:48:34,000 --> 00:48:38,040 measurements the apparent position of 964 00:48:35,880 --> 00:48:39,880 the sun starts moving around so this 965 00:48:38,040 --> 00:48:42,000 mirror actually tracks the sun it's 966 00:48:39,880 --> 00:48:44,880 moving a thousand times a second to 967 00:48:42,000 --> 00:48:47,000 basically take out the turbulence of the 968 00:48:44,880 --> 00:48:48,359 airplane the mirror is autoc correcting 969 00:48:47,000 --> 00:48:50,000 it's getting a signal from the camera 970 00:48:48,359 --> 00:48:52,610 it's saying oh the sun has moved off of 971 00:48:50,000 --> 00:48:55,839 Center bring it back to 972 00:48:52,610 --> 00:48:58,640 [Music] 973 00:48:55,839 --> 00:49:00,799 side 974 00:48:58,640 --> 00:49:03,400 while Earthbound scientists are limited 975 00:49:00,799 --> 00:49:06,240 to studying this eclipse from one 976 00:49:03,400 --> 00:49:07,960 angle viewing from space will give 977 00:49:06,240 --> 00:49:11,319 scientists an entirely different 978 00:49:07,960 --> 00:49:14,520 perspective on how the sun's Corona and 979 00:49:11,319 --> 00:49:16,410 its magnetic fields are shifting Heating 980 00:49:14,520 --> 00:49:18,040 and Cooling during the 981 00:49:16,410 --> 00:49:20,920 [Music] 982 00:49:18,040 --> 00:49:23,599 eclipse the Parker solar probe will be 983 00:49:20,920 --> 00:49:25,839 looking at the sun from 90° in relation 984 00:49:23,599 --> 00:49:27,880 to the rest of us here on Earth during 985 00:49:25,839 --> 00:49:30,079 the 2024 986 00:49:27,880 --> 00:49:32,280 eclipse this will give multiple 987 00:49:30,079 --> 00:49:34,760 perspectives on the Corona and allow 988 00:49:32,280 --> 00:49:36,760 scientists to compare realtime data from 989 00:49:34,760 --> 00:49:40,079 different 990 00:49:36,760 --> 00:49:42,839 angles I'm so excited for the 2024 991 00:49:40,079 --> 00:49:47,280 Eclipse it's been a long time coming to 992 00:49:42,839 --> 00:49:50,280 really understand our star the 993 00:49:47,280 --> 00:49:52,119 sun with clear weather Spectators under 994 00:49:50,280 --> 00:49:55,839 the path of the eclipse can enjoy 995 00:49:52,119 --> 00:49:57,839 totality for almost 4 and 1/2 996 00:49:55,839 --> 00:50:00,640 minutes 997 00:49:57,839 --> 00:50:02,630 but as the moon begins to reveal the sun 998 00:50:00,640 --> 00:50:04,839 further Cosmic treats 999 00:50:02,630 --> 00:50:07,400 [Music] 1000 00:50:04,839 --> 00:50:10,119 await here's the thing about the Moon is 1001 00:50:07,400 --> 00:50:12,480 not a smooth ball there are mountains 1002 00:50:10,119 --> 00:50:14,680 there are valleys so between those 1003 00:50:12,480 --> 00:50:17,160 valleys and Peaks you get light of the 1004 00:50:14,680 --> 00:50:20,079 sun peeking through and those little 1005 00:50:17,160 --> 00:50:23,359 bright dots look like a string of beads 1006 00:50:20,079 --> 00:50:25,760 we call that Bailey's beads so we can 1007 00:50:23,359 --> 00:50:28,240 actually see the Topography of the Moon 1008 00:50:25,760 --> 00:50:29,359 Illustrated and Amplified by the light 1009 00:50:28,240 --> 00:50:32,200 from the 1010 00:50:29,359 --> 00:50:34,920 sun as more sunlight creeps around the 1011 00:50:32,200 --> 00:50:37,720 edge of the Moon there's one final 1012 00:50:34,920 --> 00:50:37,720 astonishing 1013 00:50:38,119 --> 00:50:43,280 display then you have this big bright 1014 00:50:40,480 --> 00:50:47,319 spot and this is known as the diamond 1015 00:50:43,280 --> 00:50:48,720 ring it is stunning it's beautiful and 1016 00:50:47,319 --> 00:50:53,480 you don't want to miss 1017 00:50:48,720 --> 00:50:57,119 [Music] 1018 00:50:53,480 --> 00:50:59,960 it the 2024 Eclipse can teach us more 1019 00:50:57,119 --> 00:51:01,760 than ever before about our nearest star 1020 00:50:59,960 --> 00:51:04,760 that gives us life on 1021 00:51:01,760 --> 00:51:07,720 Earth total solar eclipses our amazing 1022 00:51:04,760 --> 00:51:11,280 celestial events to see it was just awe 1023 00:51:07,720 --> 00:51:13,799 inspiring to experience something so 1024 00:51:11,280 --> 00:51:16,559 extraordinary we are in a golden age 1025 00:51:13,799 --> 00:51:19,040 right now of solar 1026 00:51:16,559 --> 00:51:22,200 physics our understanding of what the 1027 00:51:19,040 --> 00:51:24,599 sun is doing is going to evolve 1028 00:51:22,200 --> 00:51:26,720 dramatically countless people around the 1029 00:51:24,599 --> 00:51:31,040 world and across Millennia have gave 1030 00:51:26,720 --> 00:51:33,280 gazed with Wonder and awe as the sun 1031 00:51:31,040 --> 00:51:34,720 disappears this how we as human beings 1032 00:51:33,280 --> 00:51:36,559 interpret this event that has been going 1033 00:51:34,720 --> 00:51:38,200 on as long as human beings have been on 1034 00:51:36,559 --> 00:51:40,680 this 1035 00:51:38,200 --> 00:51:44,680 planet let me tell you you have never 1036 00:51:40,680 --> 00:51:46,839 seen a shadow this spectacular it is a 1037 00:51:44,680 --> 00:51:49,200 truly remarkable event because you'd 1038 00:51:46,839 --> 00:51:51,760 have to wait years for the next total 1039 00:51:49,200 --> 00:51:53,359 eclipse to go over your 1040 00:51:51,760 --> 00:51:56,119 head 1041 00:51:53,359 --> 00:51:58,400 31.5 million people live in the path of 1042 00:51:56,119 --> 00:52:01,720 totality 1043 00:51:58,400 --> 00:52:03,040 a rare moment when the celestial dance 1044 00:52:01,720 --> 00:52:05,200 comes 1045 00:52:03,040 --> 00:52:07,079 home you don't want to miss this 1046 00:52:05,200 --> 00:52:09,480 opportunity to see the eclipse yeah 1047 00:52:07,079 --> 00:52:09,480 don't miss 1048 00:52:16,320 --> 00:52:21,989 [Music] 1049 00:52:25,640 --> 00:53:17,760 it 1050 00:52:27,260 --> 00:53:18,350 [Music] 1051 00:53:17,760 --> 00:53:24,600 [Applause] 1052 00:53:18,350 --> 00:53:24,600 [Music] 1053 00:53:26,880 --> 00:53:34,129 [Music] 1054 00:53:36,610 --> 00:53:43,969 [Music] 69957

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