10. WATSON • Earth.com

The scientific instrument WATSON naturally has a partner called SHERLOC. That’s nerdy humor for you! WATSON is a camera capable of taking detailed close-up shots of Martian rocks. SHERLOC, on the other hand, collects tiny pieces of this rock for chemical analysis. And working together, the two are looking for evidence of organic molecules. This includes the specific minerals that are the basis for life on Earth.

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