Add Yahoo as a preferred source to see more of our stories on Google. The complicated structure at the centre of the Butterfly Nebula, NGC 6302. There is a bright source at the centre that is ...
At first glance, the Butterfly Nebula looks like a glowing insect pinned against the backdrop of space. Officially known as NGC 6302, it sits about 3,400 light-years away in the constellation Scorpius ...
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