We, as a species spend a lot of time looking out but sometimes it's nice to look down. I've seen this a couple of times via emails and such but here's a nice Flash movie of the Earth from the High Perspective.
Purple Bacteria — Not Green Plants — Might Be the Strongest Indication of
Life
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Astrobiologists continue to work towards determining which biosignatures
might be best to look for when searching for life on other worlds. The most
comm...
6 hours ago
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