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Amy Shira Teitel here talking about The Martian
and also just what The Martian highlights

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about what we really know about Mars.

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We’ve been exploring Mars for more than
50 years and the planet’s changed dramatically

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in that time from our perspective.

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When we first saw Mars in 1965 it looked like
the Moon but less interesting as we sent later

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spacecraft with better cameras we saw more
details about the surface and Mars became

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less like the Moon and more of an alien planet.

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Since then we’ve sent landers, 2 geologist
in the form of Spirit and Opportunity and

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a Chemist in the form of the MSL Curiosity
Rover but a lot has changed every single time

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we’ve explored Mars, and as Jim Green points
out things change in a matter of years.

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We now know from Curiosity so much more about
Mars, for instance there’s more humidity

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in the atmosphere than we ever figured we
actually could pull the moisture out of the

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atmosphere.

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There’s more nitrates in the soil then we
ever imagined, that’s important as a fertilizer

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everything that we’re learning now actually
makes it easier to live and work and grow

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food on Mars then when Andy wrote the book
and that’s just only been a few years ago.

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with the upcoming InSight Mission and the
Mars 20/20 Rover Mission NASA is looking forward