We're not going to know till probably, like, ten years or so. Someone needs to send a rocket to collect those rocks and bring them back. I keep wondering, what if we bring all these rocks back? We spend all this time doing all this work, and scientists look at it and they don't find any. It's like every answer to the question, was there life on marsis just so perspective shifting.
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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