Submitted by Gari_305 t3_1093gc0 in Futurology
ConfirmedCynic t1_j3vyy1m wrote
Reply to comment by Ivebeenfurthereven in Astronomers find 2nd Earth-size planet in intriguing alien solar system by Gari_305
It isn't, actually. 0.72 AU but the Sun's habitable zone extends from 0.9 AU to 1.5 AU. It may have been at one time, when the sun was dimmer.
I guess this all depends on who you ask about the boundaries of the habitable zone though, answers vary.
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