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Old 02-29-2012, 04:19 PM   #9
Lamplighter
Person who doesn't update the user title
 
Join Date: Jun 2010
Location: Bottom lands of the Missoula floods
Posts: 6,402
Who says MSNBC is polarized ?

MSNBC
Denise Chow
2/29/12

Moon's 'earthshine' may help the search for alien life
Quote:
Studying reflected light, using giant lunar 'mirror,' works on Earth, and maybe in universe
Astronomers have managed to detect the telltale fingerprints of organic life on Earth
using a new technique that examines sunlight reflected onto the moon by our planet.<snip>

Earthshine observations have been done before,
but Sterzik and his colleagues took it one step further,
and developed a new approach to take into account the polarization of the light,
which enabled them to make more detailed and sensitive measurements.
The so-called "earthshine" observations may pave the way for a similar tool
to help spot signs of alien life in the universe, scientists say.
Of course, they could have just looked through the other end of the telescope.
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