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in terms of robots that go into space

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the sampling and caching system on the

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Mars 2020 mission is the most

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complicated most sophisticated thing

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that we know how to build this is the

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system that allows us to take core

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samples of rocky material on the surface

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of Mars carefully seal them in very

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sterile clean vessels for eventual

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return to earth we've been working on

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the sampling and caching system for

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seven years and that's because it's a

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tough job we're testing the equipment's

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and make sure that it's going to work we

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get to Mars it has to function on its

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own we have to think of all eventual

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possibilities and try them here first

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and then if they don't work change it

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now because we can't make any changes

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later to drill into the rock on Mars

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pull out intact core samples

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seal them hermetically and to be all

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done autonomously by a robot hanging off

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the end of a rover on the surface of

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Mars has been a challenge we've got

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actually three robots necessary to do

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the sample and caching systems our big

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robotic arm out on the front of the

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rover that takes our drill pushes it

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against the surface and allows us to

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take core samples then we put that core

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sample in the bit carousel the second

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robot that takes that from the robot arm

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and puts it down inside our adaptive

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caching system this is the part of the

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sampling caching system inside the rover

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we've got a little tiny robot a special

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robot arm called the Shaw sample

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handling line it takes the samples out

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of the carousel and moves them through

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volume assessment image taking and

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eventually to ceiling and then replaces

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the cylinder containing the sample in a

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storage all on its own and the

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matter of a few hours we have designs on

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bringing them back in a decade Mars has

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been at the fore of our consciousness

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about the questions of life could life

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exist in one of our nearest neighbors I

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think we have a lot to learn life or no

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life about the evolution of our solar

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system about our planet by looking in