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hi i'm jennifer stern join me as we

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i work on an instrument called the

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sample analysis at mars instrument suite

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on the curiosity rover and what that

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does is it measures the chemical

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composition of the surface in the

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atmosphere of mars my particular

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interest is nitrogen compounds

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one really cool thing that we found is

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nitrate it's a biologically and

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chemically available source of nitrogen

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it's used by biology to make

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biomolecules such as amino acids and

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nucleobases so working on sample

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analysis at mars and the curiosity rover

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is awesome because we're making these

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complex chemical measurements on the

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surface of another planet

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these are measurements that are

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difficult sometimes to even make in your

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own laboratory and yet