Scoobes on 23 June 2012
| superchunk said: I really want to know how in the world they know a meteorite came from a specific planet? We've yet to return from Mars with actual soil samples, so how do they know with any certainty that its from Mars? |
I was wondering this myself. I had a look and the rocks they mention (shergottites) are believed to come from Mars based on elemental and isotopic composition:
http://en.wikipedia.org/wiki/Martian_meteorite
In the study, this was the actual meterorite used (a fragment I'm assuming):
http://en.wikipedia.org/wiki/Shergotty_meteorite
