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Is Anybody Out There?
The search for life in space has always been the stuff of science fiction books and movies. But from the harshest deserts of Earth to the far-flown depths of space, scientists are looking for that elusive sign that we are not alone. The story »

GALLERY: Looking for life
QUIZ: Learn more about the search for life
BEHIND THE SCENES: Miles O'Brien
STORY: Looking for life in the Atacama desert
GALLERY: The driest place on Earth
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