Many planetary scientists say it's conceivable that all life on Earth is descended from organisms that originated on Mars and were carried here aboard meteorites.
And if that's the case, an instrument being developed by researchers at MIT and Harvard could provide the clinching evidence.
In order to detect signs of past or present life on Mars-if it is in fact true that we're related-then a promising strategy would be to search for DNA or RNA, and specifically for particular sequences of these molecules that are nearly universal in all forms of terrestrial life.
"It's a long shot," "but if we go to Mars and find life that's related to us, we could have originated on Mars. Or if it started here, it could have been transferred to Mars." Either way, "we could be related to life on Mars. So we should at least be looking for life on Mars that's related to us."
WELL RAELIANS, DON'T POP THE CHAMPAGNE JUST YET! THE DARWINIANS AND CREATIONISTS HAVE NOT RESPONDED YET...
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