In the 1830s and 40s, astronomers and even casual stargazers noticed that the star Eta Carinae was brightening, quickly becoming the second brightest star in the night sky. At a glance it seemed like the star had gone supernova, but it strangely survived the explosion. Thanks to the weirdness of space, modern astronomers have gotten the chance to travel back in time to witness the event, and discovered that Eta Carinae's outburst may have been the star violently cannibalizing a sibling.
.. Continue Reading Time-delayed "rerun" of 1840s supernova suggests a long-dead sibling starCategory: Space
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from New Atlas https://ift.tt/2OEylTW
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