A close-up of the Dragon's Egg Nebula, with two mismatched stars inside. ESO/VPHAS+ team. Acknowledgement: CASU Some 3,800 light-years away from Earth, in the Southern Hemisphere constellation Norma, ...
Astronomers have found dramatic evidence that a black hole or neutron star spiraled its way into the core of a companion star and caused that companion to explode as a supernova. The astronomers were ...
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