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We are the species that explores,
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that fashions vessels
to carry us into the unknown.
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We sailed the planet of our birth,
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saw its wonders and made it home.
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And it wasn't enough.
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We built flying machines
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to explore higher, faster, farther.
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Heroes flew them beyond
what once seemed possible.
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And it wasn't enough.
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In time, we created special craft
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that would ferry us
to the edge of space and back.
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And as always, there were the few…
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brave and brilliant souls…
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ready to guide this vessel through dangers
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in the name of discovery.
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Using the space shuttle,
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we built an unprecedented
outpost in the heavens.
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We learned in the weightless world
of the International Space Station,
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peered into the dark night
of an infinite universe.
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And it wasn't enough.
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Now we are fashioning vessels to set off
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on our greatest adventure
of exploration ever:
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to Mars and beyond.
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Who knew that 30 years
would go by so quickly?
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That these unique spacecraft
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would leave in their wake
a public captivated
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by their achievements…
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…a planet poised at the brink
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of deep-space exploration.
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As an astronaut, I definitely felt
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I was saying good-bye to a long-time
friend when the last shuttle landed.
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My name is Chris Ferguson.
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I was lucky enough to fly
on three shuttle missions,
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one of them on Endeavour.
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So it's no surprise
that I wanted to be there
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when she was headed for her new home
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at the California Science Center
in Los Angeles.
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From the look of it,
you might think it took
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as much engineering to get Endeavour
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through the streets of L.A.
as launching her into orbit.
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Watching the orbiter squeeze
through the city neighborhoods,
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you could feel just how much the
shuttle had come to stand for,
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almost as if it had taken
all of us into space.
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I sure don't want the world to forget
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this remarkable spacecraft
and those who built it,
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and the legacy they left,
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lighting the way toward
our next frontier in space.
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They're coming.
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The shuttle was the first
reusable piloted spacecraft.
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And its engineering and software
was so bulletproof,
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it could be flown by computers
less powerful than today's smartphones.
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Two hundred.
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One hundred.
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At 235 miles per hour,
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the shuttle had
the fastest touchdown speed
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of any flying vehicle ever built.
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When you glide 220,000 pounds
of spacecraft
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to a no-power landing,
the gear hits with a major whomp.
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Touchdown.
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Conceived in the 1970s
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as a kind of winged delivery truck
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to build a United States
low-Earth-orbit space station…
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Give you a payload I.D. of one.
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…the shuttle actually flew
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more than a decade beyond
original expectations.
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It was the shuttle program
that allowed us to do
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real ongoing work in space,
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to put delicate equipment
into orbit and to retrieve
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and fix that equipment
when things went wrong.
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Orbiters deployed, retrieved and repaired
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over a hundred scientific
and communications satellites.
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And no missions were more
important to our understanding
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of deep space than the
five flights, beginning in 1993,
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made to repair and upgrade
the Hubble Space Telescope.
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Hubble affirmative.
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You have a go for release.
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I think history will view
the Hubble Space Telescope
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as one of the crowning
achievements in astronomy.
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The Hubble gave us an unprecedented
view of both our closest neighbors
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and of galaxies
unimaginably far from our own.
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Further space telescope
investigations have revealed
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that the number of Earth-like planets
capable of harboring liquid water
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is vastly greater than
scientists once calculated.
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In 1995, the shuttles began
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a new era of
international space exploration
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when Atlantis docked, for the first time,
with the Russian MIR station.
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Eight inches.
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One-oh-point-oh-seven.
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One-oh-six.
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Four inches.
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Now. We have capture.
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Altogether, the orbiters
made 11 trips to visit Mir.
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These missions established a level
of international cooperation and expertise
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that continues to this day.
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Though MIR no longer orbits Earth,
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the shuttle proved itself
as a brilliant reusable tool
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that allowed us to live,
build and do science
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in the weightless environment of space.
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But the shuttles' truest legacy crosses
the sky above us every 90 minutes.
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The International Space Station
could never have been built
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without the shuttles' payload
and space-walk capabilities.
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Space shuttles and Russian
Soyuz and Proton rockets
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made more than 40 flights to construct
the International Space Station…
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a true engineering miracle.
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All three of my Orbiter missions
were to the ISS.
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Modules built by NASA partners in Asia,
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Europe and North America,
came together above Earth,
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over a period of 13 years,
to create a floating world
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longer than a football field
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and with more living space
than a six-bedroom house.
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A typical ISS mission
requires an astronaut
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to live six months onboard.
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But some crew members will spend a year
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learning even more
about the very real physical
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and psychological stresses
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of long-term separation from Earth.
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These missions and the 15 nations
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that designed, built and crew the ISS,
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forever changed space exploration
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into a cooperative international program
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and made a true home
and science lab like no other.
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♪ Wash away my troubles ♪
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♪ Wash away my pain ♪
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♪ With the rain in Shambala… ♪
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ISS system designs
and scientific experiments
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have spawned a multitude
of Earth-useful discoveries,
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including breakthroughs
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in water purification
and robotic microsurgery.
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But most important, the ISS
is our springboard to the future,
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giving us the knowledge and confidence
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to sustain human life
as we explore deep space.
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♪ Everyone is helpful ♪
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♪ Everyone is kind… ♪
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Life on ISS is all about getting
the job done and having a little fun.
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♪ Everyone is lucky ♪
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♪ Everyone is so kind ♪
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♪ On the road to Shambala… ♪
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And nationality is mostly
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about tasting each other's food.
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♪ Yeah, yeah, yeah, yeah, yeah ♪
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♪ Ah, ooh, ooh, ooh ♪
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♪ Ooh, ooh, ooh, yeah ♪
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♪ Yeah, yeah, yeah, yeah, yeah… ♪
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Through three decades
of camaraderie and dedication,
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355 people rode the shuttle into history.
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They circled the Earth 21,000 times,
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and it all came to seem routine….
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until it wasn't.
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…one minute, 15 seconds.
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Velocity 2,900 feet per second.
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Altitude nine nautical miles.
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Downrange distance seven nautical miles.
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This shuttle mission will launch…
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My God!
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There's been an explosion.
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Flight controllers here looking
very carefully at the situation.
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Obviously a major malfunction.
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In two accidents that stunned the world,
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we lost 14 astronauts.
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It was a sobering reminder
that every space flight
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is charged with potential danger.
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They had a hunger to explore the universe
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and discover its truths.
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They wished to serve, and they did.
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They were pioneers.
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The future doesn't belong
to the fainthearted.
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It belongs to the brave.
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The world mourned, but pushed on,
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because the accomplishments
of the space shuttle
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and the International Space Station
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were full of life-changing promise.
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In memory of our lost heroes,
the global space community
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pulled together to reignite
the future of both programs.
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Who could ask
for a better ending to my career
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as an astronaut than getting to fly
the last shuttle mission on Atlantis,
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and a final visit to the ISS.
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Atlantis launch director,
air to ground one.
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Atlantis go.
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And so, for the final time, Fergie, Doug,
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Sandy and Rex, good luck, Godspeed,
and have a little fun up there.
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We're not ending the journey today, Mike,
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we're completing a chapter of
a journey that will never end.
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You and the thousands of men and women
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who gave their hearts,
souls and their lives
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for the cause of exploration,
have rewritten history.
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Let's light this fire one more time, Mike.
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Though the shuttles no longer fly,
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I never miss a chance to see Atlantis
at the Kennedy Space Center.
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But I came to KSC to get a look
at the next big step
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in deep-space exploration,
and it's called Orion.
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Here, in the giant operations
and checkout clean room,
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the new Orion multi-purposed crew vehicle
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is coming together.
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What an impressive vehicle.
Look at that… it's beautiful.
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It's gorgeous. I'd love to climb in there.
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Orion is a true deep-space
exploration craft,
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designed to carry astronauts of the future
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back to the moon,
to asteroids, and even to Mars.
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I've always been drawn to explore
and try new experiences.
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Maybe that's why I applied
to be an astronaut.
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I'm Serena Aunon, and I am one of the
newer group of astronauts chosen by NASA.
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Like the rest of my class,
I'm absolutely honored
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and humbled to be here,
and it's great to be a part of this team.
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I guess you could say I'm one
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of those people for whom
the future has always seemed
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an unfolding adventure.
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So you can go forward
and backwards in the procedure
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just by using
this toggle switch over here.
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Yes, that, exactly.
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Learning from astronauts,
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like Lee Morin, who have
already spent weeks in space,
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gives you a great sense of confidence.
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The Orion mock-up provides
astronauts in training,
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like Serena, a chance
to learn flight procedures,
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and also give feedback
to perfect new systems.
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This should be a piece of cake for Serena,
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since my shuttle's ten screens
and more than a thousand switches
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have been streamlined
to just three screens
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and 60 switches on Orion.
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Hey, Lee, you can open
the helium cross-feed valve.
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Okay, we got that, so go ahead
and send that command
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- on the helium cross-feed valve.
- All right, copy that.
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And the shuttle's hundred pounds
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of flight manuals and checklists
have been reduced to…
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well… zero, since Orion's
are all on computer.
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Stand by, and we'll evaluate.
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But even with all these improvements,
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to get Orion into deep space,
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we're gonna need a bigger rocket.
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When NASA's giant space launch system,
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built by Boeing, is complete,
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the rocket will stand
as tall as a 38-story building
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and make more than
nine million pounds of thrust,
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enough to lift 22 elephants into space.
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For deep-space expeditions,
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the SLS will need to lift
five key mission components
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beyond low-Earth orbit.
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Since Orion is too cramped
for a six-month journey to Mars,
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one solution being developed
is an inflatable habitat
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to house the crew en route.
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A solar electric
propulsion device will provide
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00:20:11,120 --> 00:20:13,646
continuous power
for the round-trip journey.
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A lander craft will carry the
crew from their orbit above Mars
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down to the planet's surface.
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Months later, an ascent vehicle
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will lift the crew back up
to the orbiting Orion
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for the return trip to Earth.
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But even using the most sophisticated
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future spacecraft, a two-and-a-half year
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00:20:37,280 --> 00:20:38,900
round-trip journey to Mars
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will present new challenges
to the human body.
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I wanted to thank the Indiana
State Museum for having me here.
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It is an absolute pleasure.
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As a medical doctor with a
specialty in aerospace medicine,
255
00:20:50,480 --> 00:20:53,500
I am particularly interested
in keeping astronauts healthy
256
00:20:53,600 --> 00:20:57,366
as we head into deep space
for long periods of time.
257
00:21:00,000 --> 00:21:02,900
Our experience with more
extended weightlessness
258
00:21:03,000 --> 00:21:06,820
on the ISS has shown us that the
human body will face challenges
259
00:21:06,920 --> 00:21:10,163
during lengthy journeys to deep space.
260
00:21:11,640 --> 00:21:14,420
Key issues are muscle and bone loss,
261
00:21:14,520 --> 00:21:17,660
which can start after just
a few days of weightlessness,
262
00:21:17,760 --> 00:21:21,420
along with degrading
of vision for some astronauts.
263
00:21:21,520 --> 00:21:24,380
We now know that exercise is the antidote
264
00:21:24,480 --> 00:21:27,420
for most problems
caused by weightlessness.
265
00:21:27,520 --> 00:21:29,522
And I mean exercise…
266
00:21:29,640 --> 00:21:31,642
about two hours a day.
267
00:21:33,120 --> 00:21:37,380
But, even so, the first explorers to Mars
will need to rest at least a few days
268
00:21:37,480 --> 00:21:40,180
after landing on the planet
to readjust to walking,
269
00:21:40,280 --> 00:21:43,568
though Mars has less than
40% of Earth's gravity.
270
00:21:46,720 --> 00:21:49,485
Radiation is another risk in deep space.
271
00:21:54,800 --> 00:21:58,650
Radiation from our sun's solar storms
is one source of danger.
272
00:22:01,880 --> 00:22:05,420
But cosmic radiation, which
permeates all of deep space,
273
00:22:05,520 --> 00:22:08,410
is another ever-present
challenge to human health.
274
00:22:10,560 --> 00:22:13,940
Sections of Orion,
as well as the transit habitat,
275
00:22:14,040 --> 00:22:17,607
will have to serve as a shelter
in the case of a major solar flare.
276
00:22:24,160 --> 00:22:28,460
In the Arizona desert,
an Orion mock-up is being drop-tested
277
00:22:28,560 --> 00:22:31,245
to evaluate reentry systems.
278
00:22:35,120 --> 00:22:37,740
On returning from deep space,
Orion will enter our atmosphere
279
00:22:37,840 --> 00:22:40,860
more than 50% faster
280
00:22:40,960 --> 00:22:43,420
than shuttles or Soyuz capsules,
281
00:22:43,520 --> 00:22:46,140
and generate five times more heat,
282
00:22:46,240 --> 00:22:49,180
so perfecting her parachute deployment
283
00:22:49,280 --> 00:22:52,124
and heat shield is key to crew survival.
284
00:22:57,760 --> 00:23:00,260
At the Kennedy Space Center,
Orion is being prepped
285
00:23:00,360 --> 00:23:04,380
for an uncrewed
test flight into deep space.
286
00:23:04,480 --> 00:23:08,780
This new vessel marks
the first step in over 40 years
287
00:23:08,880 --> 00:23:12,965
to put humans beyond low Earth orbit.
288
00:23:15,640 --> 00:23:18,300
A journey to Mars is on the horizon
289
00:23:18,400 --> 00:23:21,180
because of wide-ranging
international efforts
290
00:23:21,280 --> 00:23:24,220
by both governments
and private enterprise.
291
00:23:24,320 --> 00:23:27,060
Companies from Boeing and Lockheed
292
00:23:27,160 --> 00:23:30,180
to newcomers like SpaceX, Sierra Nevada
293
00:23:30,280 --> 00:23:33,740
and Orbital Sciences
are developing spacecraft
294
00:23:33,840 --> 00:23:36,764
to service the ISS and beyond.
295
00:23:38,240 --> 00:23:41,180
Some private groups
foresee a technically simpler
296
00:23:41,280 --> 00:23:44,740
one-way mission to colonize Mars.
297
00:23:44,840 --> 00:23:47,140
Already thousands have volunteered
298
00:23:47,240 --> 00:23:49,925
to live permanently on the Red Planet.
299
00:23:51,840 --> 00:23:55,100
The demands of going to deep space
300
00:23:55,200 --> 00:23:58,100
will push old designs to new limits.
301
00:23:58,200 --> 00:24:01,340
- Looks good.
- Looks good. Hey.
302
00:24:01,440 --> 00:24:03,260
- New glove. Should be good.
- Sounds good.
303
00:24:03,360 --> 00:24:07,100
My name is Lindsey Aitchison
and I am a spacesuit project engineer
304
00:24:07,200 --> 00:24:09,540
at NASA Johnson Space Center.
305
00:24:09,640 --> 00:24:12,180
I first started thinking
about space flight
306
00:24:12,280 --> 00:24:14,900
when I was four years old,
when I first came to JSC
307
00:24:15,000 --> 00:24:18,447
to take a tour at the visitor's center.
308
00:24:18,560 --> 00:24:20,780
We have pictures of me just
sitting inside this spacesuit,
309
00:24:20,880 --> 00:24:23,121
and I just knew
that's what I wanted to do.
310
00:24:28,400 --> 00:24:31,300
No, dad-gum it.
311
00:24:31,400 --> 00:24:33,580
When the Apollo suits were first done,
312
00:24:33,680 --> 00:24:35,740
those were very short-duration EVAs.
313
00:24:35,840 --> 00:24:38,260
We didn't have a lot
of mobility in that suit,
314
00:24:38,360 --> 00:24:40,380
so when you see
those astronauts hopping around
315
00:24:40,480 --> 00:24:43,260
on the lunar surface,
it's not because they themselves
316
00:24:43,360 --> 00:24:46,807
are clumsy or that the gravity
is just impossible to deal with.
317
00:24:46,920 --> 00:24:49,140
We didn't give them enough
mobility in the suits.
318
00:24:49,240 --> 00:24:50,924
So we learned a lot from that.
319
00:24:54,360 --> 00:24:58,660
For the next generation suit,
there's still a lot that we don't know
320
00:24:58,760 --> 00:25:02,922
about what it's going to be like to live
and work on Mars every day.
321
00:25:04,520 --> 00:25:07,060
Once there, you'd be doing EVA,
322
00:25:07,160 --> 00:25:09,208
walking outside on the planet
about every other day.
323
00:25:16,240 --> 00:25:18,900
Once we have the hardware
in-house, we become the experts
324
00:25:19,000 --> 00:25:21,820
of how that hardware works, what it does,
325
00:25:21,920 --> 00:25:23,500
and how it meets the needs
326
00:25:23,600 --> 00:25:26,444
for our next phase of our mission design.
327
00:25:38,280 --> 00:25:40,780
We actually get into the suits,
because the best way
328
00:25:40,880 --> 00:25:45,281
to understand how a spacesuit moves
is to be inside of it and work it yourself.
329
00:25:48,280 --> 00:25:51,060
I'll be asking Richard
to perform specific tasks.
330
00:25:51,160 --> 00:25:54,740
And what I'm looking at is:
What is his gait like?
331
00:25:54,840 --> 00:25:57,580
And so I'm watching how
the bearings in the hip move
332
00:25:57,680 --> 00:26:00,180
and how the bearings in the waist move.
333
00:26:00,280 --> 00:26:03,100
And by comparing natural body
motion to suited body motion
334
00:26:03,200 --> 00:26:07,220
we can start to tweak the design
of the suit to make it more natural.
335
00:26:07,320 --> 00:26:10,220
So that's what we're
focusing on for exploration…
336
00:26:10,320 --> 00:26:12,940
is how do you walk, how do you
bend, how do you kneel,
337
00:26:13,040 --> 00:26:15,691
how do you do all
those geology-type tasks?
338
00:26:33,160 --> 00:26:35,100
So, one of the big problems
they had in Apollo
339
00:26:35,200 --> 00:26:37,780
was all of that dust on the lunar surface.
340
00:26:37,880 --> 00:26:39,620
It stuck to everything.
341
00:26:39,720 --> 00:26:41,900
When the guys would come back
inside of the lunar module
342
00:26:42,000 --> 00:26:44,220
at the end of their EVAs,
taking off their suits,
343
00:26:44,320 --> 00:26:47,060
there was dirt everywhere…
there was dirt on themselves.
344
00:26:47,160 --> 00:26:49,162
It was just gross, right?
345
00:26:56,320 --> 00:26:58,420
And that dirt is actually pretty
harmful… the lunar dirt…
346
00:26:58,520 --> 00:27:00,660
specifically, to breathe in
for long periods of time,
347
00:27:00,760 --> 00:27:02,660
so, long-duration missions,
we wouldn't want to
348
00:27:02,760 --> 00:27:05,081
bring that dirt inside
with us all the time.
349
00:27:11,760 --> 00:27:13,250
All right, Richard. Nice job.
350
00:27:13,360 --> 00:27:15,500
Time to come on in.
351
00:27:15,600 --> 00:27:17,820
So one of the key
concepts we're looking at
352
00:27:17,920 --> 00:27:22,605
for lunar and even Martian missions
is using what we call a suit port.
353
00:27:27,600 --> 00:27:30,620
The idea of a suit port
is that you have this plate
354
00:27:30,720 --> 00:27:33,460
that becomes your pressure seal
between the vehicle
355
00:27:33,560 --> 00:27:35,940
and your suit,
so when you're not using the suit,
356
00:27:36,040 --> 00:27:37,780
it stays outside the entire time.
357
00:27:37,880 --> 00:27:41,980
It is physically attached to the vehicle so
you can come in and out of your space suit
358
00:27:42,080 --> 00:27:44,260
without ever having to physically
359
00:27:44,360 --> 00:27:47,540
go into an air lock like we do today.
360
00:27:47,640 --> 00:27:49,260
Welcome home, Richard.
How'd the suit feel?
361
00:27:49,360 --> 00:27:50,980
Feels good.
362
00:27:51,080 --> 00:27:53,082
Outstanding. Strong work out there.
363
00:27:57,800 --> 00:28:00,860
Driving a space
exploration vehicle on dry land
364
00:28:00,960 --> 00:28:04,169
is great training for deep-space
missions of the future.
365
00:28:08,640 --> 00:28:12,167
But driving a mini-sub
was even more exacting.
366
00:28:28,680 --> 00:28:31,411
No, there are no liquid oceans on Mars,
367
00:28:31,520 --> 00:28:33,980
but before setting out for the Red Planet,
368
00:28:34,080 --> 00:28:37,971
astronauts may make test
missions to nearby asteroids.
369
00:28:40,840 --> 00:28:45,380
A mini-sub resembles the kind of craft
we will use to explore asteroids,
370
00:28:45,480 --> 00:28:48,450
and the ocean matches
the zero gravity of space.
371
00:28:58,320 --> 00:29:01,260
This NEEMO 16 mission marks
372
00:29:01,360 --> 00:29:04,340
the 16th time NASA has trained
at the Aquarius lab,
373
00:29:04,440 --> 00:29:08,722
which is anchored 60 feet underwater,
off Key Largo in Florida.
374
00:29:24,640 --> 00:29:27,420
NASA aquanauts live in the lab
for up to two weeks
375
00:29:27,520 --> 00:29:29,522
without coming to the surface.
376
00:29:36,840 --> 00:29:39,220
This allows us to work the entire day
377
00:29:39,320 --> 00:29:43,402
and only decompress once
at the end of the mission.
378
00:29:48,080 --> 00:29:51,220
Any mistakes here
can have real consequences,
379
00:29:51,320 --> 00:29:54,529
exactly as in deep, inhospitable space.
380
00:30:02,600 --> 00:30:05,500
Since asteroids appear
to have changed very little
381
00:30:05,600 --> 00:30:07,420
since they first formed,
382
00:30:07,520 --> 00:30:12,003
they could tell us a lot
about our early solar system.
383
00:30:18,680 --> 00:30:21,763
Ultimately, we may develop
space tools to capture
384
00:30:21,880 --> 00:30:26,124
and reposition a small asteroid
to orbit our moon.
385
00:30:28,360 --> 00:30:30,140
This would allow for easier study,
386
00:30:30,240 --> 00:30:33,540
and also develop our ability
to deflect a larger asteroid
387
00:30:33,640 --> 00:30:35,961
that was on a collision course with Earth.
388
00:31:00,280 --> 00:31:02,760
This Olympus inflatable habitat,
389
00:31:02,880 --> 00:31:05,340
designed by Bigelow Aerospace,
390
00:31:05,440 --> 00:31:08,340
is a look at the future
of living in space.
391
00:31:08,440 --> 00:31:10,500
Jay, this is amazing. How big is that?
392
00:31:10,600 --> 00:31:12,340
Thanks. Yeah, it's really big.
393
00:31:12,440 --> 00:31:15,260
It's about 2,250 cubic meters
interior volume, which is
394
00:31:15,360 --> 00:31:17,860
a little over twice the size
of the International Space Station.
395
00:31:17,960 --> 00:31:20,260
And it looks like it's, like,
40 feet tall or somethin'.
396
00:31:20,360 --> 00:31:22,700
Yeah, it's probably 45 or 50.
It's really big.
397
00:31:22,800 --> 00:31:25,020
Once you get into space,
you just inflate it with air?
398
00:31:25,120 --> 00:31:28,860
Right, we bring up huge compressed air
tanks that bring up large volumes of air.
399
00:31:28,960 --> 00:31:31,620
Um, this expands out so the
inside is about 16 meters
400
00:31:31,720 --> 00:31:34,326
in diameter, and the outside's
a lot bigger than that.
401
00:31:41,240 --> 00:31:43,700
It's surprising that an inflatable habitat
402
00:31:43,800 --> 00:31:47,460
can protect its crew against
micrometeorites and radiation,
403
00:31:47,560 --> 00:31:50,245
but that's what tests have shown.
404
00:31:51,280 --> 00:31:55,220
The immense volume of Olympus
will provide ample work areas
405
00:31:55,320 --> 00:31:59,325
as well as living space
to help maintain crew morale.
406
00:32:02,000 --> 00:32:04,660
Supply craft to provide food, fuel,
407
00:32:04,760 --> 00:32:08,340
and radiation-protective living
space will be landed on Mars
408
00:32:08,440 --> 00:32:12,180
well before the first human
expedition is launched.
409
00:32:12,280 --> 00:32:15,580
We don't know exactly what all
the spacecraft will look like,
410
00:32:15,680 --> 00:32:18,331
but concepts are under active development.
411
00:32:20,800 --> 00:32:23,460
Our infatuation with space exploration
412
00:32:23,560 --> 00:32:27,360
is as limitless as space itself.
413
00:32:28,400 --> 00:32:31,644
Without the shuttle, there would be
no International Space Station,
414
00:32:31,760 --> 00:32:36,100
the vital test bed for a future
human expedition to Mars.
415
00:32:36,200 --> 00:32:40,100
And that mission is closer
than you might imagine.
416
00:32:40,200 --> 00:32:44,620
NASA projects we will get
to Mars in the 2030s.
417
00:32:44,720 --> 00:32:49,900
In other words, within the career
of today's young astronauts.
418
00:32:50,000 --> 00:32:53,500
So any of these movies that you see where
people survive even for 20 seconds…
419
00:32:53,600 --> 00:32:55,300
Why go to Mars?
420
00:32:55,400 --> 00:32:58,847
Why not just send more and more
sophisticated robotic vehicles?
421
00:32:59,280 --> 00:33:01,820
I think to explore beyond what is known
422
00:33:01,920 --> 00:33:05,140
is simply at the core of our DNA.
423
00:33:05,240 --> 00:33:09,340
And only a human mission
can tell us definitively
424
00:33:09,440 --> 00:33:13,968
if we can survive and establish
future settlements on Mars.
425
00:33:25,640 --> 00:33:28,980
Astronauts exploring the planet may notice
426
00:33:29,080 --> 00:33:31,300
and learn things robots could not,
427
00:33:31,400 --> 00:33:35,488
things that could help take us
to the next frontiers beyond Mars.
428
00:33:43,640 --> 00:33:45,881
Every 26 months,
there is an optimal window
429
00:33:46,000 --> 00:33:48,810
for launching spacecraft to Mars.
430
00:33:48,920 --> 00:33:52,220
But even using the planets'
orbits to shorten distance
431
00:33:52,320 --> 00:33:55,300
and increase speed, with
currently planned propulsion,
432
00:33:55,400 --> 00:33:59,060
the trip to and from Mars
will take six months…
433
00:33:59,160 --> 00:34:01,220
each way.
434
00:34:15,760 --> 00:34:19,500
Someday, even more exotic plasma
or fusion propulsion
435
00:34:19,600 --> 00:34:21,900
could shorten the journey.
436
00:34:22,000 --> 00:34:25,846
But the first explorers to Mars
will not have that luxury.
437
00:34:32,360 --> 00:34:35,740
Orion can transport up to six passengers,
438
00:34:35,840 --> 00:34:37,780
but for a first trip to Mars,
439
00:34:37,880 --> 00:34:40,281
it would likely carry no more than four.
440
00:34:43,360 --> 00:34:46,260
While going to and from the Red Planet,
441
00:34:46,360 --> 00:34:48,740
Orion and the inflatable habitat
442
00:34:48,840 --> 00:34:51,860
will be the astronauts' life
support home for flight control,
443
00:34:51,960 --> 00:34:56,204
science, and that all-important
physical exercise.
444
00:35:17,080 --> 00:35:19,140
Going to Mars…
445
00:35:19,240 --> 00:35:21,980
getting there, working there,
coming back…
446
00:35:22,080 --> 00:35:24,300
will take nearly three years.
447
00:35:24,400 --> 00:35:26,500
I wonder how that will feel,
448
00:35:26,600 --> 00:35:31,242
to be away from home and friends
and family for so long.
449
00:35:49,560 --> 00:35:52,460
There is no 911 in space.
450
00:35:52,560 --> 00:35:56,300
When Orion nears Mars,
the spacecraft is two years away
451
00:35:56,400 --> 00:35:58,980
from any possibility of help from Earth.
452
00:35:59,080 --> 00:36:02,180
Even radio communications
will take 40 minutes
453
00:36:02,280 --> 00:36:04,180
to send and receive,
454
00:36:04,280 --> 00:36:07,540
so any equipment failures
or other emergencies
455
00:36:07,640 --> 00:36:10,291
must be solved by the crew alone.
456
00:36:16,720 --> 00:36:20,122
Nearly four decades
of robotic exploration on Mars
457
00:36:20,240 --> 00:36:23,244
has blazed a path for humans to follow…
458
00:36:24,480 --> 00:36:27,290
…craft like Pathfinder and Curiosity.
459
00:36:29,120 --> 00:36:32,090
Maybe I'll get to kick the dust
off their tires.
460
00:37:33,360 --> 00:37:37,220
Though it will be incredibly
exciting to land on Mars,
461
00:37:37,320 --> 00:37:41,060
our ongoing training
in sophisticated simulator labs
462
00:37:41,160 --> 00:37:45,245
means it won't feel entirely
unfamiliar when we get there.
463
00:37:50,400 --> 00:37:54,300
Later explorers to Mars might
travel hundreds of kilometers
464
00:37:54,400 --> 00:37:59,003
to mine their own water and hydrogen to
make fuel for their return to Earth.
465
00:37:59,640 --> 00:38:02,723
But first visitors
will have their hands full
466
00:38:02,840 --> 00:38:07,767
making the discoveries that only
a human mission can accomplish.
467
00:38:18,320 --> 00:38:22,060
I don't know if I'll ever get
to walk and work on Mars,
468
00:38:22,160 --> 00:38:25,300
but I may already know
some of those who will.
469
00:38:25,400 --> 00:38:29,767
Someone who dreams of it, just like me.
470
00:38:43,520 --> 00:38:47,860
Humankind has forever
been drawn toward the unknown,
471
00:38:47,960 --> 00:38:50,260
by the simple innate conviction
472
00:38:50,360 --> 00:38:53,620
that, to see the long-hidden
side of the mountain,
473
00:38:53,720 --> 00:38:58,100
to brush the infinite depth
of the sea, might reveal
474
00:38:58,200 --> 00:39:01,204
where we come from and who we are.
475
00:39:03,880 --> 00:39:07,460
When humans do touch and explore Mars,
476
00:39:07,560 --> 00:39:11,326
it will be among the greatest
achievements in history.
477
00:39:16,160 --> 00:39:19,700
But even that won't be enough.
478
00:39:19,800 --> 00:39:24,380
We are the species that explores.
479
00:39:24,480 --> 00:39:26,820
We will fashion new vessels
480
00:39:26,920 --> 00:39:29,651
to carry us still deeper into space,
481
00:39:29,760 --> 00:39:32,820
venturing from our life-giving home
482
00:39:32,920 --> 00:39:35,820
to uncover the secrets of the cosmos
483
00:39:35,920 --> 00:39:40,687
and our own unimagined possibilities.38094
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