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Earth As an Extrasolar Planet

July 24th, 2010 07:00 admin Leave a comment Go to comments

sciencehabit writes “Astronomers have a theory that they can detect whether a planet light years away will be habitable by just looking at how its sun is reflected in its atmosphere. To test the idea, they pretended that they were observing Earth from a distant object — in this case, the moon. And sure enough, they picked up critical components for life in Earth’s atmosphere: ozone, oxygen, sodium, and nitrogen.”

Source: Earth As an Extrasolar Planet

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