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Space & Astronomy

Did we all originate on Mars ?

By T.K. Randall
March 26, 2011 · Comment icon 32 comments



Image Credit: NASA
One theory suggests that life on Earth developed from organisms that arrived here from the planet Mars.
Its not a new idea and is one backed as a possibility by many planetary scientists. A long time ago the atmosphere of Mars was a lot more like that of the Earth than it is today and in that time over a billion tons of rock has traveled from Mars to the Earth providing a means with which organisms could have been carried from one to the other.
If we are descendants from Mars, there might be important lessons to be learned about our own biological origins by studying biochemistry on our neighbor planet, where biological traces erased long ago here on Earth might have been preserved in the Martian deep freeze.


Source: PhysOrg.com | Comments (32)


Recent comments on this story
Comment icon #23 Posted by Ranyhyn 12 years ago
I'm convinced there is life, even intelligent life somewhere else. It might even be quite close to earth for all I know, though it seems less likely. I won't rule out that this planet has been visited in it's past, but I don't think we were genetically engineered, or came her in ships ourselves.
Comment icon #24 Posted by ohio state buckeyes 12 years ago
This was interesting I wonder if other life would have started on Mars besides us.
Comment icon #25 Posted by angi chiesa 12 years ago
Can anyone explain to me how tons of material came to this planet by natural means as mentioned in the theory
Comment icon #26 Posted by DONTEATUS 12 years ago
Certnally! Yuck,Yuck,Yuck! They Came via THe Martian ships that was on that movie.
Comment icon #27 Posted by High Gravity 12 years ago
Couldn't the reverse have happened? Meteorites blasting Earth's surface back into space and finding its way to Mars?
Comment icon #28 Posted by paul the walrus 12 years ago
"It's a long shot," Carr concedes
Comment icon #29 Posted by the L 12 years ago
I dont know...but Im feeling all day that I dont belong here...
Comment icon #30 Posted by The Silver Thong 12 years ago
Can anyone explain to me how tons of material came to this planet by natural means as mentioned in the theory Ejecta from a collision with an asteroid or meteor hitting Mars sending Martian soil into space.
Comment icon #31 Posted by DONTEATUS 12 years ago
Ejecta from a collision with an asteroid or meteor hitting Mars sending Martian soil into space. They dont watch enough of "Meteor Men" I`ll Have my ejecta wit Hot Sauce !and a Few Hot Wings !
Comment icon #32 Posted by richochet 12 years ago
umm earth is alot older than mars so i would say no. life didnt strat on mars


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