Could an alien spore really travel light years between different star systems? Well, as long as your theory doesn't require it to be alive when it arrives - sure it can.
The idea that a tiny organism could hitchhike aboard a mote of space dust to cross vast stretches of space and time until it landed and took up residence on the early Earth does seem a bit implausible. More likely any such organisms would have been long dead by the time they reached Earth. But? might those long dead alien carcasses still have provided the genomic template that kick started life on Earth? Welcome to necropanspermia.
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Read the rest of Astronomy Without A Telescope – Necropanspermia (560 words)
© Steve Nerlich for Universe Today, 2010. | Permalink | No comment | Add to del.icio.us
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Full story at http://www.universetoday.com/78578/astronomy-without-a-telescope-necropanspermia/
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