The Journal of Physical Chemistry publish a study that was based on a computer model of an impact's effect on a comet crystal initially made up of water, carbon dioxide and other molecules.
''Comets carry very simple molecules in them," said study co-author Nir Goldman, a physical chemist at Lawrence Livermore Laboratory in California. "When a comet hits a planetary surface, for example, that impact can drive the synthesis of more complicated things that are prebiotic — they're life-building."
Maybe comets did spark life on earth. What do you think? Leave a comment!
June 2013. Web. 6 Sept. 2013.