LEFT-HANDED ALIENS

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					LEFT-HANDED ALIENS
Jean Thilmany
Mechanical Engineering; Jul 2009; 131, 7; Docstoc
pg. 12




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DOCUMENT INFO
Description: Researchers may one day be able to find extraterrestrial life via an instrument on a telescope, according to scientists at the National Institute of Standards and Technology, who have built a prototype. The device for detecting life elsewhere in the universe won't spot aliens directly. Rather, an instrument in space would pick up a telltale sign that life may have influenced a landscape: a preponderance of molecules that have a certain chirality, or what the researchers describe as handedness. The team intends to improve its detector so it can look at pond surfaces and then at landscapes on Earth.
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