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In today's impossible engineering.
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Welcome to Mars.
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This is where we test the future robotic
rovers.
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We're on a mission to Mars.
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It is a wonderful feat of engineering
that these spacecraft come together.
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With engineering that's out of this
world.
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Wheel walking is such an incredibly
important feature, but this will be
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the first time it's ever been flown on a
rover.
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And the pioneering historic innovations.
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Oh, it's like something out of Star
Wars.
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It always feels so mysterious.
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It's like another planet.
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It may be impossible.
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Possible.
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For millennia, we've looked up at the
stars in wonder.
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questioning whether we're alone in the
vast expand.
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I think exploration is always important.
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It is important for humankind.
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This is really a wild place up here.
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Everybody is fascinated about
exploration, in particular, Mars.
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With eyes set on Earth's cosmic
neighbor,
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scientists are aiming to answer the
ultimate question.
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The early telescopes was showing rivers
or canals or channels
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which might have also taken water.
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That's, of course, something absolutely
interesting to see if there may be life,
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even on Mars.
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To finally find out if there is life on
Mars,
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engineers at the European Space Agency
have created a machine like no other.
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Enter the ExoMars rover.
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An interplanetary explorer.
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Built to boldly go where no man or
machine has gone before.
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This is one of the most incredible
engineering projects that's going on in
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world right now.
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There's something very different about
engineering something for another
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It requires a level of thinking, a level
of...
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practicality, a level of innovation that
you just don't get when you're
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designing things for Earth.
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What we are doing feels like science
fiction.
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This extraordinary project marks the
dawn of a new age of space exploration.
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This project will be the culmination of
about 15 to 20 years of development.
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It's a big effort that it costs a
billion euros.
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It is a wonderful feat of engineering.
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An ambitious mission to make the first
-ever confirmed discovery of life on
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another planet.
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There is no project in the world that
compares to this one.
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Costing over $1 .2 billion, the European
Space Agency's ExoMars rover weighs in
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at almost 700 pounds.
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This game -changing robot has six sprung
alloy wheels designed to compress for
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maximum traction on the Martian soil,
while 3D imaging cameras sit atop a six
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-foot -tall mast to survey the
landscape.
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A revolutionary core sampling drill can
reach over six and a half feet below
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ground, and a host of onboard
instruments will execute the first -ever
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biological experiments on another
planet.
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This collaborative effort among over 20
countries is overseen by mission manager
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Pia Michdofer.
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Which model did you last use today?
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So today we drove around with this one.
Okay.
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I think you know this one already. Yes,
I do.
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But we are waiting for our autonomous
navigation to be delivered for ExoMars.
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Every component is modeled and tested.
But there's one feature that sets this
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Martian explorer apart from any other.
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You see here the heart of it. This is
our drill.
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This is very unique.
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There is no other rover on Mars that can
drill as deep as two meters.
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So this is really special in our ExoMars
mission.
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We expect to find traces of life on
Mars, but we have the biggest chance to
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any if we go deep in the subsurface of
Mars.
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This is where we expect to find
preserved.
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biomarkers or biomaterial, and that's
what we are looking for.
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We are not there yet.
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Once we arrive and touch down, the real
work will begin for ExoMars.
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But the team faces huge engineering
challenges in their mission to land on
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surface of another planet.
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At a secure clean room facility in
southern France, engineers are fine
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the spacecraft that will travel to Mars,
overseen by Chief Engineer Albert
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Haldeman.
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To get things into space, you need to
fight the Earth's gravity. So you need
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have a lot of thrust to push against
that gravity.
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One of the Russian contributions to the
cooperation is the rockets to launch.
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And we will use a Proton M to launch the
ExoMars 2022 spacecraft composite.
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The upper stage of the Proton M is
capable of accelerating the
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spacecraft from Earth orbit towards
Mars.
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The colossal Proton M rocket will launch
from Baikonur Cosmodrome in Kazakhstan.
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the world's largest operational space
launch facility.
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The 4 .7 -ton missile burns an enormous
660 gallons of rocket fuel to escape
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Earth's gravity and ejects three stages
to lighten the load.
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The final stage sends the spacecraft on
its nine -month voyage to Mars.
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But what comes next poses an
astronomical hazard.
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The most ambitious part is the entry,
descent and landing.
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Landing on Mars presents a huge
challenge because you have to go from an
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interplanetary velocity of 10 kilometers
per second to a velocity of zero in a
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period of about six or seven minutes.
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If ExoMars 2022 crashes, it will be
catastrophic.
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This spacecraft will be making the 350
million mile journey to another world.
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where an arsenal of onboard instruments
will fight their way through the Martian
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atmosphere.
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You need a heat shield to protect that
initial ballistic entry and to slow you
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down. But then you need some other
systems to slow yourself further.
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We have the biggest parachute ever used
on Mars.
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You're going almost as fast on a
parachute on Mars as the human skydiver
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with no parachute on Earth.
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So you need something else to stop you
when you get to the ground, and we use
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rockets for that. We use a controlled
rocket thrust to make a soft landing on
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the surface.
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With half of all previous missions to
Mars ending in disaster... Failure for
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ExoMars 2022 is not an option.
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This time, we really, really, really
will make it.
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But on a mission of this scale, the
challenges are relentless.
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Landing on Mars is just the beginning.
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If you land in one place and only have a
panorama, it's very limited what you
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can do and how much you can interact
with that environment.
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The scientific ambition requires
mobility.
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To find a solution, the team must turn
to history's great space exploration
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pioneers.
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At the U .S. Space and Rocket Center in
Alabama, aerospace engineer Kimberly
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Robinson is searching for an
interplanetary engineering innovation.
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Landing on the surface of the moon for
the first time ever was a great
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accomplishment, probably one of the
greatest of human achievements.
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We soon learned that we were limited by
how far the astronauts could explore on
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the lunar surface.
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But we understood that if we needed to
explore further, we were going to need
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transportation to help us get to points
of interest.
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As the first Apollo astronauts realized
that moonwalking wasn't going to cut it,
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engineers Ferenc Pavlich and Sam Romano
of the Lunar Roving Task Team stepped in
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with a solution.
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This is the Lunar Rover.
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This is a replica that was built with
some of the original lunar rover design
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team, and I am going to get to drive it.
So I am very excited. So let's give it
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a test drive, shall we?
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All right.
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And we're off.
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The lunar rover marks the beginning of a
new chapter of space exploration.
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So this was the world's first off
-planet, off -road vehicle.
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It drives like a dream.
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Powered by two 36 -volt non
-rechargeable batteries, and with each
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its own dedicated electric motor, the
Lunar Rover was a four -wheel drive
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vehicle designed to enable lunar
exploration.
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I can only imagine how much fun it must
have been on the lunar surface, going
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through craters, around rock.
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It's a marvel of engineering.
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So what made this rover such a runaway
success? And how can today's engineers
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use a vehicle from the past?
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We built the rover to rove in order to
expand the access to the Martian
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To inspire a futuristic rover destined
for a whole new world.
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Welcome to Mars.
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The lunar rover was a groundbreaking
piece of engineering.
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It changed the way astronauts explored
the moon's surface and proved invaluable
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on the last three Apollo missions.
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To make this moon buggy possible,
engineers used some key design elements.
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Ultra -lightweight components kept the
rover's weight down to only 680 pounds
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and allowed it to be folded and stowed
for its 240 ,000 -mile journey to the
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moon.
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While the wheels on the replica are
rubber wheels, the wheels on the real
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rover were made of a steel wire mesh to
get better traction on the surface.
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A very important feature of the lunar
rover were these fenders.
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They kept off the dust from the lunar
surface to keep everything working and
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the right temperature.
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And these fender guards here were
actually made with the original molds
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lunar rover.
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A host of onboard equipment, like a
reconnaissance camera.
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and a communications antenna enabled
widespread scientific exploration.
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It could go about 8 miles per hour
generally, but got up to 11 .2 miles per
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on Apollo 17.
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It drives with a joystick. As you can
see, my hand, I turn it left or right to
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go in the direction I want to go.
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Astronauts on Apollo missions 15, 16,
and 17 used this cosmic car to explore
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further than ever before, expanding the
.6 -mile exploration distance of Apollo
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11 to an enormous 19 miles on the Apollo
17 mission, allowing
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astronauts to collect over five times
the amount of rock samples for
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examination.
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Although the original lunar rovers are
left behind on the lunar surface, The
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legacy of the lunar rover is that we
still have the engineering technology
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know -how to create this wonderful
vehicle that we can use as we return the
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man and the first woman to the lunar
surface in the near future.
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In Europe, engineers have adapted the
rover concept for the 21st century.
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But instead of a crude buggy, it's an
autonomous robotic rover
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that the Apollo engineers could have
only dreamed of.
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We built the rover to rove in order to
expand the access to the Martian surface
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in order to find the evidence that it
hopes to achieve.
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Behind me, you have the spacecraft that
will go to Mars.
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And inside it, the lander is actually
all folded up in the middle of the
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module.
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After a successful touchdown, the
landing platform and the rover will
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just like the lunar roving vehicle.
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Once the solar array and mast are
deployed, ExoMars is ready to embark on
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adventure.
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Leaving the landing platform behind, the
rover will embark on a mission lasting
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211 Martian souls, the equivalent of
seven Earth months.
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Roaming on its inorganic sprung alloy
wheels, specifically designed to prevent
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microbial contamination between planets
millions of miles apart.
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When you can drive on Mars... Every day
is like a new landing site. You discover
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through a new panorama of images every
day a new place on another planet.
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Building on the lunar rover concept, the
team has created one of the most
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advanced machines to ever roam another
planet.
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We imagine that spacecraft are somehow
built by robots and built by other
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machines because they're so high -tech.
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But one of the fascinating secrets I
find is that spacecraft are the epitome
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handmade engineering.
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All of the structural panels are laid
out, the glues are all painted on by
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artisans, frankly.
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The technicians and engineers who make
these things, they have artistic
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competence to make perfect assemblies
every time. It is a wonderful feat of
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engineering to see spacecraft come
together.
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The first stage of this mega -mission is
complete.
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But exploring uncharted territory
presents enormous engineering
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Because where the distance between
worlds is immense, so are the risks.
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For aerospace engineer Paul Meacham,
interplanetary contact is the top
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The problem with communicating with a
spacecraft on Mars is that even
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at the speed of light... A radio signal
will take up to 20 minutes to make the
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journey from Earth to Mars, and another
20 minutes to come from Mars back to
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Earth. So if you're trying to drive
something by remote control, like a
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20 minutes later, that signal finally
makes it to Mars, and of course, in
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time, it's already crashed into whatever
the object was.
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To find a solution,
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Paul must step into another world.
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Welcome to Mars.
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Hidden away in the UK is a highly
detailed 4 ,000 square foot facility
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to imitate the Martian surface.
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This is our Mars Yard facility here in
Stevenage and it's where we test the
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future robotic rovers.
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This extraterrestrial environment is the
perfect place to test and develop the
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ExoMars navigation system.
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This Mars Yard is similar to Mars in a
lot of different ways. Firstly, the sand
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is very similar.
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We also have representative lighting in
here that give us the right light levels
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that we'll expect to encounter on Mars.
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It's also inhabited by its very own
resident rover.
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This is Bruno.
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He is one of our earliest prototypes.
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One of the key features of Bruno is his
autonomous navigation system, which is
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00:17:32,510 --> 00:17:36,370
really, really pivotal for the way the
rover will drive across the surface
232
00:17:36,370 --> 00:17:40,070
without humans needing to constantly
monitor and remote control it.
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00:17:40,760 --> 00:17:45,240
It starts with these two cameras at the
top of the mast here, and they see in 3D
234
00:17:45,240 --> 00:17:49,160
in much the same way we do. Our brains
are extremely good at combining the
235
00:17:49,160 --> 00:17:53,760
images from each eye into one consistent
flowing 3D image of what's in front of
236
00:17:53,760 --> 00:17:56,920
us. Every time the rover stops, it will
take a new set of images.
237
00:17:57,560 --> 00:18:02,020
And it will analyze those to figure out
where on the terrain in front of it it
238
00:18:02,020 --> 00:18:03,020
can and can't go.
239
00:18:03,100 --> 00:18:06,560
So if there's a rock that's too big or a
slope that's too steep, it will
240
00:18:06,560 --> 00:18:10,500
automatically mark that area as
forbidden and it will not go anywhere
241
00:18:10,620 --> 00:18:12,940
So you end up with what we call a
navigation map.
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00:18:16,520 --> 00:18:21,640
Using state -of -the -art 3D imaging,
ExoMars builds a detailed topographical
243
00:18:21,640 --> 00:18:22,640
map.
244
00:18:23,660 --> 00:18:24,900
Thinking for itself.
245
00:18:25,210 --> 00:18:29,090
It's up to the rover to autonomously
navigate a successful path.
246
00:18:31,210 --> 00:18:35,410
We're going to put this autonomous
navigation system to the test by using
247
00:18:35,410 --> 00:18:39,490
rock here. We can put that directly in
front of the rover.
248
00:18:41,590 --> 00:18:45,970
And what we'll do is we'll give the
rover a target the other side of the
249
00:18:46,170 --> 00:18:50,090
The rover should identify this as
something that is too big, and we should
250
00:18:50,090 --> 00:18:51,990
the rover taking an alternate path.
251
00:18:54,030 --> 00:18:55,030
Here we go.
252
00:18:57,300 --> 00:19:02,580
The rover's just effectively determined
the height of that rock, and it's
253
00:19:02,580 --> 00:19:06,200
determined that that height is beyond
its locomotion capability.
254
00:19:06,500 --> 00:19:10,460
So it's immediately turned to the right
to drive around that rock.
255
00:19:11,379 --> 00:19:13,700
such that it doesn't in any way endanger
itself.
256
00:19:13,900 --> 00:19:17,380
The rover's done that entirely by
itself. All I have had to have done as
257
00:19:17,380 --> 00:19:21,760
operator is to give it the target, the
end point I want it to reach. I've told
258
00:19:21,760 --> 00:19:25,180
it nothing about the best route to take,
or the terrain, or the fact that rock
259
00:19:25,180 --> 00:19:26,180
was even there.
260
00:19:27,300 --> 00:19:32,280
But when the goal is to explore the most
likely habitats for alien life, some
261
00:19:32,280 --> 00:19:34,340
hazards must be tackled head -on.
262
00:19:38,100 --> 00:19:41,240
One of the real challenges is that the
places on Mars that are most
263
00:19:41,240 --> 00:19:43,900
scientifically interesting are often the
least accessible.
264
00:19:44,180 --> 00:19:46,900
And that means that rather than just
going around these rocks, we do need to
265
00:19:46,900 --> 00:19:47,900
through rock fields.
266
00:19:48,980 --> 00:19:53,260
And on the red planet's varied terrain,
rocks aren't the only obstacle.
267
00:19:53,660 --> 00:19:58,200
Some of the sand on Mars can have the
consistency of talcum powder. So when
268
00:19:58,200 --> 00:20:01,980
drive into that, it's very easy for the
rover to dig itself in, and that causes
269
00:20:01,980 --> 00:20:02,980
major problems.
270
00:20:05,130 --> 00:20:10,210
In 2009, NASA's Mars rover Spirit became
buried in a sand trap.
271
00:20:11,750 --> 00:20:16,230
Despite a concerted effort from the team
back on Earth, Spirit was unable to
272
00:20:16,230 --> 00:20:20,710
move. NASA's $800 million mission was
stopped in its tracks.
273
00:20:22,430 --> 00:20:27,710
To avoid losing another rover to the
Martian sands, engineers will turn to
274
00:20:27,710 --> 00:20:29,170
pioneers of the past.
275
00:20:31,110 --> 00:20:35,610
The engineers behind the latest Mars
rover must plan for every possible
276
00:20:35,610 --> 00:20:39,410
challenge their vehicle could encounter
as it explores the red planet.
277
00:20:42,990 --> 00:20:47,110
Getting out of a situation where the
rover has got stuck is absolutely
278
00:20:47,930 --> 00:20:52,270
If the rover is unable to free itself,
the consequences are disastrous.
279
00:20:54,480 --> 00:20:59,120
In essence, you'd have spent nearly
billions of euros and years of
280
00:20:59,120 --> 00:21:02,800
launching this thing to Mars only for it
to get stuck. So that would pretty much
281
00:21:02,800 --> 00:21:03,800
be the end of the mission.
282
00:21:04,680 --> 00:21:09,660
When rocks and sandpits must be tackled
head -on, the rover team must look to
283
00:21:09,660 --> 00:21:11,140
the innovators of the past.
284
00:21:21,689 --> 00:21:25,990
Robotics engineer Tel Garin is trekking
through the back roads of Ohio.
285
00:21:26,510 --> 00:21:28,590
Oh, yeah, this is getting very rough.
286
00:21:29,430 --> 00:21:30,830
Oh, man, here we go.
287
00:21:32,430 --> 00:21:35,770
In search of a groundbreaking locomotive
innovation.
288
00:21:38,090 --> 00:21:43,290
There's some pretty serious, like, dips
and sort of rocky areas here.
289
00:21:43,530 --> 00:21:44,489
Oh, yeah.
290
00:21:44,490 --> 00:21:48,770
This is a four -wheel drive car. It's
doing okay over this terrain.
291
00:21:49,310 --> 00:21:53,050
But there are places even vehicles like
this can't go.
292
00:21:54,170 --> 00:21:58,450
Tackling tricky terrain is a challenge
that the U .S. military has faced since
293
00:21:58,450 --> 00:22:00,490
the early days of mechanized warfare.
294
00:22:02,370 --> 00:22:07,750
In World War I and II, the military was
developing a lot of different vehicles.
295
00:22:07,750 --> 00:22:10,490
Most of them had wheels and tracks.
296
00:22:10,870 --> 00:22:15,130
There's a lot of areas on the planet
that are mountainous or sandy that
297
00:22:15,130 --> 00:22:16,610
vehicles or even tracked vehicles.
298
00:22:16,910 --> 00:22:18,170
really can't go.
299
00:22:18,390 --> 00:22:20,650
It just gets too steep or too rough.
300
00:22:26,150 --> 00:22:27,490
In 1981,
301
00:22:28,350 --> 00:22:34,590
engineers Kenneth Waldron, Robert McGee,
and Vincent Vonout were contracted by
302
00:22:34,590 --> 00:22:38,290
the military to develop a vehicle that
could go where no other could.
303
00:22:41,930 --> 00:22:44,690
This tarp is massive. It might be huge.
304
00:22:45,150 --> 00:22:48,290
Their contraption seemed to disappear
off the face of the earth.
305
00:22:48,750 --> 00:22:50,130
Oh, my gosh.
306
00:22:50,670 --> 00:22:52,650
But Kel has tracked it down.
307
00:22:53,350 --> 00:22:55,670
All right, let's see how the front of
this looks.
308
00:22:56,910 --> 00:22:58,990
This is the ASV.
309
00:22:59,810 --> 00:23:01,650
Oh, it's incredible.
310
00:23:02,290 --> 00:23:06,430
An assisted suspension vehicle that
doesn't roll, but walks.
311
00:23:07,410 --> 00:23:09,270
It's like something out of Star Wars.
312
00:23:10,289 --> 00:23:15,250
This extraordinary six -legged beast
hasn't seen the light of day for almost
313
00:23:15,250 --> 00:23:16,250
years.
314
00:23:17,470 --> 00:23:23,150
Taking its first steps in 1985, the ASV
could stride across eight -foot -wide
315
00:23:23,150 --> 00:23:26,270
ditches and over six -and -a -half -foot
-tall walls.
316
00:23:26,530 --> 00:23:32,510
This 16 -foot -long giant weighed in at
5 ,900 pounds with the ability to carry
317
00:23:32,510 --> 00:23:38,050
another 485 pounds of cargo, all thanks
to its six -limbed structure.
318
00:23:43,780 --> 00:23:48,360
Because it was this hexapod design, it
had an incredible amount of
319
00:23:48,360 --> 00:23:51,880
maneuverability. Each of the legs could
move to the side.
320
00:23:52,120 --> 00:23:56,480
They could move forward and back. The
vehicle could crab walk sideways if it
321
00:23:56,480 --> 00:23:58,980
needed to. It can sidestep across a
river.
322
00:23:59,300 --> 00:24:03,000
Like, that's something that you don't
get with any other type of vehicle.
323
00:24:03,280 --> 00:24:05,920
It must have been incredible to be in
control of this.
324
00:24:07,900 --> 00:24:10,740
This marching monster has long since
retired.
325
00:24:11,360 --> 00:24:16,340
But to demonstrate the secret behind its
locomotion, Kel has scaled it down.
326
00:24:16,840 --> 00:24:21,700
So I wanted to show you how the ASV
works. And this little robot that we
327
00:24:21,700 --> 00:24:23,600
here is a perfect analog for that.
328
00:24:23,800 --> 00:24:28,580
You see, both the ASV and this robot
have six legs. So when we command this
329
00:24:28,580 --> 00:24:33,900
forward, the robot does just fine. It's
able to navigate this area really well.
330
00:24:34,000 --> 00:24:39,020
And the reason for that is because it
has this alternating tripod gate. You
331
00:24:39,020 --> 00:24:43,500
that only three of its legs are off the
ground at any time, leaving the other
332
00:24:43,500 --> 00:24:47,760
three to be firmly planted on the ground
in a very stable place. And that allows
333
00:24:47,760 --> 00:24:53,020
the robot to move with a lot of
dexterity and confidence through really
334
00:24:53,020 --> 00:24:54,020
terrain.
335
00:24:56,680 --> 00:25:01,680
Synchronizing two sets of tripods to
alternate creates the ant -like hexapod
336
00:25:01,680 --> 00:25:02,680
locomotion.
337
00:25:04,320 --> 00:25:09,780
And upscaling nature's design meant that
the ASV could go virtually anywhere.
338
00:25:12,910 --> 00:25:17,790
This is such an unconventional vehicle,
and it really shows that it was designed
339
00:25:17,790 --> 00:25:22,030
to be as mobile as possible and be able
to move over any terrain.
340
00:25:22,630 --> 00:25:27,370
At the time, in the 80s, this was
considered the world's most advanced
341
00:25:27,370 --> 00:25:29,770
machine. This was pioneering technology.
342
00:25:30,510 --> 00:25:35,510
All of those walking robots that we see
now that are going to go and explore
343
00:25:35,510 --> 00:25:39,610
other planets and that are able to
because they can walk and because they
344
00:25:39,610 --> 00:25:43,750
navigate over really challenging
terrain, it all started here. It all
345
00:25:43,750 --> 00:25:44,750
with this.
346
00:25:56,870 --> 00:26:01,970
For the next generation interplanetary
explorer, Engineers have equipped the
347
00:26:01,970 --> 00:26:04,470
ExoMars rover with the best of both
worlds.
348
00:26:10,130 --> 00:26:15,130
It's designed to drive across the
Martian surface on six wheels. But when
349
00:26:15,130 --> 00:26:17,830
going gets tough, it's time to start
walking.
350
00:26:20,030 --> 00:26:25,390
What wheel walking allows us to do is to
move each wheel or a set of wheels
351
00:26:25,390 --> 00:26:28,570
individually while keeping the other
ones stable.
352
00:26:29,390 --> 00:26:33,850
The front wheel and the back wheel on
one side and the middle wheel on the
353
00:26:33,850 --> 00:26:38,470
side move forward, and then the reverse
will happen, and that sequence will
354
00:26:38,470 --> 00:26:39,770
repeat over and over again.
355
00:26:41,570 --> 00:26:46,450
This particular wheel -walking gait is
actually called a tripod gait and is
356
00:26:46,450 --> 00:26:48,390
influenced by the way insects walk.
357
00:26:51,010 --> 00:26:53,750
This form of locomotion may not be fast,
358
00:26:54,770 --> 00:27:00,460
but by adapting the hexapod walking
technology, the team has created a way
359
00:27:00,460 --> 00:27:03,320
traverse even the most perilous Martian
sandpit.
360
00:27:08,340 --> 00:27:12,800
The normal way of driving the rover, we
do expect that to be able to handle 95 %
361
00:27:12,800 --> 00:27:14,220
of what we encounter on Mars.
362
00:27:14,680 --> 00:27:20,020
That 5%, the 5 % that can strand the
rover and end the mission, that's just
363
00:27:20,020 --> 00:27:21,020
much of a risk to take.
364
00:27:21,360 --> 00:27:25,060
Wheel walking is such an incredibly
important feature, but this will be
365
00:27:25,060 --> 00:27:27,180
the first time it's ever been flown on a
rover.
366
00:27:28,330 --> 00:27:33,290
And even more revolutionary systems keep
this explorer trekking in the hunt for
367
00:27:33,290 --> 00:27:34,290
Martian life.
368
00:27:34,570 --> 00:27:39,370
All six wheels are individually
controlled, and that allows us to
369
00:27:39,370 --> 00:27:42,550
different geometries that wouldn't be
possible if we had an axle system like a
370
00:27:42,550 --> 00:27:47,410
car. So, for example, he can follow a
curve, he can crab sideways, and he can
371
00:27:47,410 --> 00:27:51,270
even spin on the spot if we need him to
by individually controlling those
372
00:27:51,270 --> 00:27:52,270
motors.
373
00:27:54,550 --> 00:27:56,810
By pushing the limits of locomotion.
374
00:27:57,180 --> 00:28:02,000
This monumental machine will one day be
able to roam Mars without restriction.
375
00:28:02,880 --> 00:28:07,340
When you have a mission like ExoMars,
it's costing over a billion euros. The
376
00:28:07,340 --> 00:28:11,100
benefit of being able to escape from
situations that would otherwise surround
377
00:28:11,100 --> 00:28:12,840
the rover is so important.
378
00:28:13,160 --> 00:28:16,560
In simple terms, we can save the mission
when otherwise it would be lost.
379
00:28:17,240 --> 00:28:22,620
With a mission to discover the
extraordinary, ExoMars dares to wander
380
00:28:22,620 --> 00:28:24,020
other rover has before.
381
00:28:29,290 --> 00:28:34,850
But to realize their dreams of
encountering alien life, engineers face
382
00:28:34,850 --> 00:28:35,850
challenge.
383
00:28:36,450 --> 00:28:43,090
We think the best opportunity to find
organics well -preserved is to go in the
384
00:28:43,090 --> 00:28:45,550
subsurface up to two meters depth.
385
00:28:47,110 --> 00:28:52,350
To create more impossible engineering,
the team will have to turn to innovators
386
00:28:52,350 --> 00:28:53,350
of the past.
387
00:29:01,420 --> 00:29:06,760
On its mission to unveil the secrets of
the Red Planet, this hardy robot, named
388
00:29:06,760 --> 00:29:10,980
for the chemist Rosalind Franklin, is
designed to withstand a bombardment of
389
00:29:10,980 --> 00:29:16,180
solar radiation and endure temperature
swings from 80 degrees Fahrenheit to a
390
00:29:16,180 --> 00:29:17,660
frosty minus 200.
391
00:29:21,300 --> 00:29:26,660
But to make the whole mission
worthwhile, rover project manager Bruno
392
00:29:26,660 --> 00:29:29,220
his team have one last challenge to
conquer.
393
00:29:33,230 --> 00:29:38,130
We are in the clean room facility of
Thales Salenia Space, Turin.
394
00:29:38,410 --> 00:29:44,290
This is the clean room where the
elements that go on Mars are integrated.
395
00:29:44,890 --> 00:29:49,430
This is currently the cleanest facility
available in the world for space
396
00:29:49,430 --> 00:29:50,430
application.
397
00:29:52,650 --> 00:29:57,910
To eliminate biological contamination on
the rover, the team runs tests on an
398
00:29:57,910 --> 00:29:58,910
exact replica.
399
00:30:01,840 --> 00:30:06,560
In this area here, we have the ground
test model of the rover.
400
00:30:09,460 --> 00:30:15,360
There is some activity that cannot be
performed on the flight model due to the
401
00:30:15,360 --> 00:30:18,080
constraints linked to the cleanlet.
402
00:30:18,320 --> 00:30:23,720
It is essential that we have another
model where we can try everything in
403
00:30:23,720 --> 00:30:25,280
advance of the real operation.
404
00:30:26,960 --> 00:30:30,520
But contamination from Earth is only
part of the problem.
405
00:30:32,080 --> 00:30:38,760
In 2023, the real Mars rover will touch
down in Oxia Planum, an
406
00:30:38,760 --> 00:30:44,800
81 ,800 square mile plateau flagged as a
potential hotbed for Martian life.
407
00:30:45,040 --> 00:30:49,820
But in the hunt for answers, searching
above ground will barely scratch the
408
00:30:49,820 --> 00:30:50,820
surface.
409
00:30:51,400 --> 00:30:56,800
While the Earth's magnetic field
protects us from harmful solar
410
00:30:56,800 --> 00:30:59,300
dead husk of Mars has no such luxury.
411
00:30:59,710 --> 00:31:02,790
and its surface has been under attack
for billions of years.
412
00:31:03,450 --> 00:31:10,230
The first one meter, one meter and a
half of subsurface has been sterilized
413
00:31:10,230 --> 00:31:11,450
by radiation.
414
00:31:13,870 --> 00:31:20,270
We think the best opportunity to find
organics well -preserved is to go in the
415
00:31:20,270 --> 00:31:22,490
subsurface up to two meters depth.
416
00:31:23,550 --> 00:31:27,450
To find a way to extract pristine rock
samples for analysis.
417
00:31:27,920 --> 00:31:30,520
Could the solution lie buried in the
past?
418
00:31:39,680 --> 00:31:43,140
Archaeologist Cassie Newland is heading
underground in the UK.
419
00:31:43,940 --> 00:31:46,180
It always feels so mysterious.
420
00:31:47,160 --> 00:31:48,660
It's like another planet.
421
00:31:51,100 --> 00:31:55,380
She's on the hunt for buried treasure
that sparked a mining frenzy.
422
00:31:56,560 --> 00:31:58,380
So this is South Crofty mine.
423
00:31:58,800 --> 00:32:01,440
And South Crofty has been open since
medieval times.
424
00:32:01,940 --> 00:32:07,240
If you look around the walls, you'll see
all the minerals leaching out. And it's
425
00:32:07,240 --> 00:32:09,160
those minerals that we're interested in
here.
426
00:32:10,120 --> 00:32:11,980
They're the reason the mine is here.
427
00:32:14,640 --> 00:32:16,060
This is what we're looking for.
428
00:32:17,000 --> 00:32:22,600
As you can see, this beautiful stripe
running from the top here right down to
429
00:32:22,600 --> 00:32:23,519
the bottom.
430
00:32:23,520 --> 00:32:26,220
That is a vein that's been exposed in
the face here.
431
00:32:28,440 --> 00:32:33,780
The 19th century saw a wave of new
mineral and ore discoveries, but
432
00:32:33,780 --> 00:32:36,200
deep deposits was an enormous task.
433
00:32:38,140 --> 00:32:40,960
So at the beginning in Cornwall, mining
is very easy.
434
00:32:41,160 --> 00:32:44,460
It's right on the surface. You can see
it's all sparkly and shiny because the
435
00:32:44,460 --> 00:32:45,940
copper is above the tin.
436
00:32:46,140 --> 00:32:48,760
You can literally fall over it when
you're walking across the moors.
437
00:32:48,960 --> 00:32:52,320
But the deeper you get, the more
expensive a business it is.
438
00:32:52,880 --> 00:32:56,260
At some point, you don't know if it's
worth doing all that expensive mining
439
00:32:56,260 --> 00:33:00,160
because you don't know how far down that
particular vein goes. You need to know
440
00:33:00,160 --> 00:33:02,160
what's under the ground before you dig
it.
441
00:33:04,380 --> 00:33:10,220
But in 1863, French railroad engineer
Rodolphe Lachaud invented a genius
442
00:33:10,220 --> 00:33:13,180
solution that changed the face of mining
forever.
443
00:33:22,380 --> 00:33:24,840
This is the diamond core drill.
444
00:33:27,560 --> 00:33:32,780
An incredible tool allowing rock samples
to be extracted more efficiently than
445
00:33:32,780 --> 00:33:33,780
past mechanisms.
446
00:33:35,200 --> 00:33:39,840
To design a vehicle capable of drilling
deeper into the Martian surface than
447
00:33:39,840 --> 00:33:44,620
ever before, the engineers behind the
Mars rover will need to take Le Chaux's
448
00:33:44,620 --> 00:33:46,100
19th century innovation.
449
00:33:48,190 --> 00:33:50,170
Here it comes. So this is our new core.
450
00:33:50,530 --> 00:33:52,570
And bring it into the future.
451
00:33:52,870 --> 00:33:58,610
It's a rather complicated mechanism, but
it's rather inactive.
452
00:33:59,830 --> 00:34:05,950
When Rodolphe Le Chaux designed the
diamond core drill in 1863, he likely
453
00:34:05,950 --> 00:34:10,070
imagined it would provide inspiration
for a 21st century Mars rover.
454
00:34:10,330 --> 00:34:15,730
But his revolutionary invention will be
vital to future space science, and it's
455
00:34:15,730 --> 00:34:17,429
still in use on Earth today.
456
00:34:20,360 --> 00:34:26,100
So it's practically the same as that
19th century drill, but just done in
457
00:34:26,100 --> 00:34:27,100
machinery.
458
00:34:28,000 --> 00:34:32,639
And what they're doing here is they're
drilling down into the earth, trying to
459
00:34:32,639 --> 00:34:38,500
discover whether there's enough tin and
copper in the Cornish hills to open up
460
00:34:38,500 --> 00:34:39,659
Cornish mining again.
461
00:34:40,280 --> 00:34:45,380
What makes this such a fascinating...
innovation it is like a magical
462
00:34:45,380 --> 00:34:50,840
to look beneath the ground what it does
is it sends a hollow drill down into the
463
00:34:50,840 --> 00:34:56,780
earth to form a column of rock and it
takes the column out in its entirety so
464
00:34:56,780 --> 00:35:00,980
you can see exactly what is happening
every meter under the ground if you want
465
00:35:00,980 --> 00:35:06,340
to know to the nearest centimeter it can
tell you and here you can see where
466
00:35:06,340 --> 00:35:10,930
they're actually drilling so this is
spinning around around around And on the
467
00:35:10,930 --> 00:35:12,670
end of it, it's one of these.
468
00:35:12,970 --> 00:35:14,510
This is a diamond bit.
469
00:35:14,750 --> 00:35:17,750
And this is spinning around and around,
and it's biting through the rock,
470
00:35:17,950 --> 00:35:21,190
creating a core that's this size.
471
00:35:22,170 --> 00:35:26,530
These drills were the first to produce
an intact core that could be extracted
472
00:35:26,530 --> 00:35:27,530
and examined.
473
00:35:28,130 --> 00:35:32,690
But drilling close to the surface and
drilling at depth are very different
474
00:35:32,690 --> 00:35:33,690
propositions.
475
00:35:34,500 --> 00:35:38,920
Another innovation is necessary to make
the diamond core drill useful over a
476
00:35:38,920 --> 00:35:39,920
mile underground.
477
00:35:40,520 --> 00:35:44,560
When you're prospecting for ore, you
need to drill really deep, like two and
478
00:35:44,560 --> 00:35:47,560
half kilometers deep. And that poses a
lot of challenges.
479
00:35:48,040 --> 00:35:52,460
You need to keep that hole open so you
can keep bringing those cores up and
480
00:35:52,460 --> 00:35:56,380
inspect them and see what you've got. So
you do it like this. Put your drill bit
481
00:35:56,380 --> 00:36:01,880
on the end, goes in here, and then all
of this spins to drill out a core.
482
00:36:02,800 --> 00:36:06,920
And as it goes further and further down,
the rods disappear into the ground. You
483
00:36:06,920 --> 00:36:07,920
add the next one.
484
00:36:09,620 --> 00:36:10,620
There you go.
485
00:36:11,380 --> 00:36:12,380
Connecting up.
486
00:36:13,000 --> 00:36:16,120
By the time they finish, they're going
to have an unbroken chain of these
487
00:36:16,120 --> 00:36:17,960
stretching down thousands of meters.
488
00:36:18,760 --> 00:36:23,140
With this incredible combination of
technique, miners were able to retrieve
489
00:36:23,140 --> 00:36:25,720
pristine samples from unprecedented
depth.
490
00:36:26,920 --> 00:36:28,260
Okay, this is the moment of truth.
491
00:36:28,500 --> 00:36:30,460
Here it comes. So this is our new port.
492
00:36:30,920 --> 00:36:33,870
There could be ore in there. Could be
the secret for the universe.
493
00:36:35,330 --> 00:36:36,330
Perfect.
494
00:36:37,870 --> 00:36:42,910
Woo! So now it's time to get the core
sample out and we'll see what we've got.
495
00:36:46,670 --> 00:36:47,670
Beautiful.
496
00:36:50,590 --> 00:36:56,370
So what you've got here is a beautiful
cylinder that is a record of everything
497
00:36:56,370 --> 00:36:57,690
the drill has cut through.
498
00:36:59,560 --> 00:37:02,900
And when you put them all together,
you've basically got a vision of the
499
00:37:02,900 --> 00:37:07,260
beneath your feet. So this is absolutely
essential when prospecting for
500
00:37:07,260 --> 00:37:11,040
minerals. So this is still at the
cutting edge of mining today.
501
00:37:11,500 --> 00:37:13,120
It's pretty ingenious.
502
00:37:23,470 --> 00:37:28,430
Back in Turin's clean room, engineers
have created a drilling system worthy of
503
00:37:28,430 --> 00:37:33,550
the space age. But before it can extract
samples, it needs to reach further down
504
00:37:33,550 --> 00:37:36,090
into the subsurface than any rover
before.
505
00:37:38,890 --> 00:37:45,350
The drill is able to reach two meter
depth using three extension rods.
506
00:37:45,770 --> 00:37:48,790
All the rods are screwed one together
with the other.
507
00:37:49,420 --> 00:37:55,100
by the internal mechanism such to reach
the required length.
508
00:37:55,300 --> 00:38:01,020
It's a rather complicated mechanism, and
it's rather an achievement.
509
00:38:01,880 --> 00:38:07,520
And this revolutionary drill apparatus
might just make the ExoMars rover the
510
00:38:07,520 --> 00:38:09,140
to finding alien life.
511
00:38:09,700 --> 00:38:13,920
In this aspect, our mission is more
significant than any other engineering
512
00:38:13,920 --> 00:38:15,920
project on Earth.
513
00:38:19,330 --> 00:38:24,510
Inspired by Le Chaux's 19th century
drilling innovation, a box mounted on
514
00:38:24,510 --> 00:38:29,470
ExoMars Rover houses a revolutionary
drilling tool, as well as three
515
00:38:29,470 --> 00:38:30,470
extension rods.
516
00:38:31,690 --> 00:38:36,290
Once the drill box has rotated to the
downward drilling position, excavation
517
00:38:36,290 --> 00:38:37,290
will commence.
518
00:38:37,830 --> 00:38:42,510
And as it descends through the soil,
each extension piece will be
519
00:38:42,510 --> 00:38:46,110
screwed to the top, creating a six -and
-a -half -foot -long chain.
520
00:38:49,520 --> 00:38:53,680
This drill is able to dig deeper on Mars
than any rover before.
521
00:38:56,180 --> 00:39:00,520
And once the target depth has been
reached, Le Sho's core sampling
522
00:39:00,520 --> 00:39:01,580
comes into play.
523
00:39:06,360 --> 00:39:11,300
The drill has not only the capability of
drilling, but the capability of
524
00:39:11,300 --> 00:39:12,500
acquiring the sample.
525
00:39:12,820 --> 00:39:16,540
The drill is scoring the sample in the
rock.
526
00:39:17,020 --> 00:39:23,180
And then when the current is completed,
the shutter is closed, such that the
527
00:39:23,180 --> 00:39:24,380
sample can be retrieved.
528
00:39:26,820 --> 00:39:31,740
On its quest, the rover's super -tough
diamond -encrusted drill tip will
529
00:39:31,740 --> 00:39:35,620
excavate 22 samples before the cutting
edge is worn down.
530
00:39:36,080 --> 00:39:41,280
Each one will be analyzed internally for
signs of organic material by an array
531
00:39:41,280 --> 00:39:43,100
of high -tech onboard instruments.
532
00:39:43,630 --> 00:39:47,670
and the results will be beamed directly
to mission control on Earth.
533
00:39:53,930 --> 00:39:58,130
Experiments can be run on Mars without
sending samples to Earth.
534
00:39:58,730 --> 00:40:04,470
Having the possibility to have a
laboratory working for the search of
535
00:40:04,470 --> 00:40:07,730
outer planet, that is really incredible.
536
00:40:10,800 --> 00:40:15,880
The ExoMars team has driven drill
engineering deeper than ever, and they
537
00:40:15,880 --> 00:40:19,220
be the very first to discover something
extraordinary.
538
00:40:22,180 --> 00:40:28,600
Nobody has ever attempted to reach the
surface of Mars in search of life. So in
539
00:40:28,600 --> 00:40:33,760
this aspect, our mission is more
significant than any other engineering
540
00:40:33,760 --> 00:40:34,760
on Earth.
541
00:40:44,490 --> 00:40:48,170
By daring to explore and innovate more
than ever before,
542
00:40:48,950 --> 00:40:55,650
the ExoMars rover is set to change the
course of scientific history forever.
543
00:40:56,870 --> 00:41:02,630
To be part of a mission, finding life
outside the Earth for the very first
544
00:41:02,630 --> 00:41:06,370
as a scientist, as an engineer, I think
that's a wonderful achievement, and it's
545
00:41:06,370 --> 00:41:08,770
been my great privilege to be part of
it.
546
00:41:15,150 --> 00:41:18,310
By enhancing the work of the pioneers of
the past.
547
00:41:20,870 --> 00:41:22,850
Overcoming huge challenges.
548
00:41:23,830 --> 00:41:26,450
And pushing the boundaries of
innovation.
549
00:41:27,550 --> 00:41:30,710
We can take our curiosity beyond Earth.
550
00:41:30,990 --> 00:41:36,270
And that ambition for scientists, for
exploration, for human beings, it's
551
00:41:36,270 --> 00:41:37,270
exhilarating.
552
00:41:37,650 --> 00:41:41,670
Engineers are succeeding in making the
impossible possible.
553
00:41:43,150 --> 00:41:49,750
For me, this mission is so important
because it is bringing so much knowledge
554
00:41:49,750 --> 00:41:51,930
humanity. This is incredible.
555
00:41:51,980 --> 00:41:56,530
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