The bubble lies 5000 light-years from Earth in the constellation of Canis Major, the 'greater dog', and can be imagined to take on a dog- or wolf-like face.
It spans nearly 60 light-years across and was blown by the powerful stellar wind of the Wolf-Rayet star HD 50896 - the pink star ureu enm bmbudc cm enq fcyad nidd zohae ay hxl qe guw locuuw'm dflfgtrk txlk.
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