Meteorite experiment deals blow to 'bugs from space' theorySeptember 25th, 2008 in Astronomy & Space / Space Exploration
This NASA file image shows a 4.5 billion-year-old rock, labeled meteorite ALH84001, believed to have once been a part of Mars and to contain fossil evidence that primitive life may have existed on Mars more than 3.6 billion years ago, which was found in Allan Hills ice field, Antarctica in 1984.
A novel experiment has dealt a setback to a theory that life on Earth was kickstarted by bacteria that hitched a ride on space rocks.
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"Meteorite experiment deals blow to 'bugs from space' theory." September 25th, 2008. http://phys.org/news141539594.html