Blowing Bubbles
Astronomers have captured a very special event in space: a so-called ‘reborn planetary nebula’. This is a gas bubble inside a previously blown bubble, or nebula, like you can see in this image. Most stars turn into a nebula at the end of their lives, and sometimes, like in this case, they do the same thing twice.
Credit:
NASA/CXC/IAA-CSIC/M.Guerrero et al/STScI/ESA/XMM-Newton/NSF/NOAO/KPNO
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