How to design a Mars-proof robot

Ever wondered whether life exists on Mars?

Well, the ExoMars rover is the first to be specifically designed to find evidence of past or present life on Mars. It's due to land on the planet in 2021.

It's currently being built by a team of scientists and will drill deep below the planet's surface when it's there.

Space scientist Liz Seward is part of the team behind it.

She says a lot goes into making it capable of surviving Mars!

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