Yeah, but splitting hairs is fun for the entire family!
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Life definitely exists on other worlds- they've foudn stuff on mars for instance.
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Wrong, actually. They've found some marks in rocks that appeared to be indications of bacteria and amino acids that are necessary for (but do not definitively indicate) life.
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In recent years speculation has grown again, however—prodded by a study of the ALH84001 Mars meteorite which concluded that it contained fossilized microbes. This explanation was disproved, however, and it was discovered that the worm-like appearance of the fossils was due to the coating of gold on the samples for viewing under a microscope (without the gold it appeared very rough, square, and generally more rock-like). Other scientists have subsequently sought to explain these findings on the basis of chemical processes. Both remain highly controversial within the scientific community. Other Mars meteorites such as the Nakhla meteorite were suggested to have evidence of life also.
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(
http://en.wikipedia.org/wiki/Life_on...odern_findings)