Lichen shown to survive in outer space

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An experiment carried out on the Internatonal Space Station has shown that lichen can survive in outer space - lending support to the 'panspermia' theory that life arrived here from elsewhere.
In 2008, scientists sent the suitcase-sized Expose-Epackage to the Space Station filled with organic compounds and living organisms to test their reaction to outer space. It returned to Earth in 2009.

http://www.tgdaily.com/space-features/64257-lichen-shown-to-survive-in-outer-space