RE: Hello, Fellow Martians
August 29, 2013 at 6:58 pm
(This post was last modified: August 29, 2013 at 7:07 pm by Anomalocaris.)
(August 29, 2013 at 6:09 pm)futilethewinds Wrote: Okay, just because life happened on Mars first doesn't mean that all life came from Mars. Life could have happened in more than one place and not even been related to each other. Y'know?
The idea is when life first appeared on earth, environment on earth could support life, but didn't appear to be capable of facilitating important steps that would be needed to create life. But environment on mars at the same time appeared to be both capable of supporting life and facilitating these important steps required to create life.
It is possible life arose more than once. But molecular evidence strongly suggest all life that exists on earth today did inb fact have one single common origin, or at most two extremely similar and closely related origins in the same environment. There is no evidence the first life on earth was not of the same origin as all life that exists on earth today.
This is why it is proposed that critical steps in facilitaing creation of life on earth must have taken place on Mars, and life on earth came from Mars.
