posted on Jan, 19 2012 @ 12:52 AM
Originally posted by new_here
Originally posted by consciousgod
I guess these meteorites could be from Mars but there is no conclusive evidence that would say for sure. We don't know what isotopes will be found on
other planets except for places we earthlings have been. We haven't been anywhere but the earth, moon, and Mars to test.
Yes, you expanded my thought process here. It might be from Mars, or it might be from another body in the universe with a like makeup of Mars.
Firstly, I was going to say: Wow, so parts of other planets come flying our way? Just didn't know that. What, are these rocks pulled towards the sun
but we're in their path? Or some gravitational tug between Earth and Mars as we pass each other? Or just what does cause a rocky planet to fling part
of itself away from itself? Does a chunk of Earth occasionally take flight and hit Venus or Mercury? Hmmm...
Mars was hit by something huge millions of years ago, blasting rock into the inner and outer solar system.
They arrive here just like pieces of asteroids.
What do you think all of those Mars probes and rovers have been doing on Mars? They have done extensive geochemistry of martian rock, and therefor,
they know they have elemental and isotopic compositions that are similar to rocks and atmosphere gases analyzed by landers. Rocks that form on
different planets have unique characteristics that bind them to their origin.
Then, with meteorites from Mars that are already found on on Earth, They have found gas bubbles trapped in these meteorites.
NASA: "There seems little likelihood that the SNCs are not from Mars. If they were from another planetary body, it would have to be
substantially identical to Mars as it now is understood.
These trapped gases provided direct evidence for a martian origin.
These are the same tests that were done on the new Moroccan meteorite, that provided this news release.
edit on 19-1-2012 by charlyv because:
spelling and clarity
edit on 19-1-2012 by charlyv because: (no reason given)