19-11-2018 23:35 via feedproxy.google.com

The Complicated History of Planets Around Barnard’s Star

Perhaps no other star system has elicited so much wonder, mystery and frustration as Barnard’s Star.Astronomers announced last Wednesday they’d discovered a planet in its thrall weighing in at around three Earth-masses, with a frigid, 233-day orbit. The find finally answers whether we have any planetary neighbors in the second-closest system to Earth (after Alpha Centauri).This follows more than 50 years of scrutinizing the star, and coming up empty. A 1999 study ruled out any gas gi
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