life

Earth-Like Planet May Exist

Sep 13, 2011
European astronomers said Monday that they may have found a celestial body with the right characteristics to host life: a "Goldilocks" planet circling a star at a distance that is not too hot, not too cold, but just right for liquid water to exist.
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Still Searching for Water on the Backup Planet

Jun 23, 2010
Our ability to evacuate to Mars once we're done wrecking the Earth depends on a lot, but the whole idea is a nonstarter if the fourth rock from the sun is dry. Ten years ago scientists discovered evidence of flowing water on Mars and we have reason to believe there's plenty of the frozen variety, but we still haven't caught Mars with its gullies wet.

What’s the Equation for Life?

Sep 17, 2009
Seeing as we're not doing so well with our planetary preservation program here on Earth, it might be prudent to consider the possibility of shopping around the universe for a new home at some point in the not-too-distant future. But how do we know which heavenly bodies are ripe for the human ruination treatment?

Methane Hints at Life on Mars

Jan 16, 2009
NASA scientists have discovered regularly replenished supplies of methane gas on the Red Planet. That raises two possibilities: The gas could be formed by geologic activity or, as anyone who has spent time around cows can tell you, it could be a sign of life.