The red giant π1 Gruis is 530 light-years away, and it's reaching the end of its natural life. Soon, scientists think it will become a planetary nebula. But before it dies, astronomers are using π1 Gruis to shed light on some of the secrets of...from Engadget RSS Feed https://www.engadget.com/2018/01/30/detailed-image-of-gruis-red-giant-confirms-theory/
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