News arrived last week that the nearest neighbor to our Sun, the red dwarf Proxima Centauri, is orbited by a rocky planet that might have liquid water. But Tabitha M. Powledge warns that you might not like to live there: "Proxima b is semi-sorta Earth size, minimum 1.3 Earth’s mass, and probably rocky like Earth. But in almost every other way, Proxima b cannot reasonably be called Earthlike. For example, the planet’s year is only a little more than 11 Earth days long."
August 27, 2016
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