Detailed image of red giant confirms theory about massive stars

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 http://ift.tt/2BETrtH
via IFTTT