The question had previously been up in the air
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It could also be useful in finding life on other planets
To understand why, consider the side-blotched lizard
A new science—applied astrobiology—is taking shape
Does ditching chronology and geography inspire or confuse visitors?
A handpicked article read aloud from the latest issue of The Economist
Astrobiologists think they could point to more habitable areas on the red planet
