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Earth as Alien World

Moon TransitNASA’s Deep Impact spacecraft has shot footage of the moon transiting Earth as seen from 31 million miles away. Scientists are using the video to develop techniques to study alien worlds.

“Making a video of Earth from so far away helps the search for other life-bearing planets in the Universe by giving insights into how a distant, Earth-like alien world would appear to us,” said University of Maryland astronomer Michael A’Hearn, principal investigator for the Deep Impact extended mission, called EPOXI.

They hasten to point out that any alien civilization would need much more advanced technology in order to see Earth as clearly. I question why they felt the need to point that out.

Anyway, neat.

Link (via Slice of SciFi)

Posted in Space July 23rd, 2008 by Chip
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