If we found an example, or a specimen that showd there used to be life on mars, is that life related to life on earth? If if that's the case, maybe life didn't start on earth at all. Maybe it started on mars, and then somehow life got here. It could be we're related to martians, which is woe. How are we related to Martians? Riht is life a fundamental process that happens any time there is a habitable environment.
Mars was once a very different planet, with rivers, lakes, and — potentially — life. NASA’s latest Mars rover is on a mission to find traces of past life. What happens if it does?
This is the third episode of our new four-part series, Lost Worlds.
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