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Countdown - NASA Perseverance Mars Rover - touchdown scheduled for 3:55 pm EST Feb 18
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02-23-2021, 10:43 AM
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troutman
Unfrozen Caveman Lawyer
Join Date: Oct 2002
Location: Winebar Kensington
Exp:
If life on Mars evolved completely separately from Earth, could it have an entirely different chemical basis (something different than DNA) and therefore could not interact with our biology?
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