The Bubble Nebula: Also known as NGC 7635, it is an emission nebula located 8 000 light-years away. Westerlund 2: This image of the cluster Westerlund 2 has been released to celebrate Hubble’s 25th ...
This is a Hubble Space Telescope photograph of an enormous, balloon-like bubble being blown into space by a super-hot, massive star. Astronomers trained the iconic telescope on this colorful feature, ...
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