NASA's Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) was built for the ambitious purpose of performing an all-sky survey. The data it collects ...
Sagittarius A* may be a dense dark matter core instead of a black hole, offering a new explanation for the Milky Way’s central gravity.
Morning Overview on MSN
Could something even darker than a black hole lurk in the Milky Way’s core?
The object at the Milky Way’s center has long been treated as a settled case: a supermassive black hole called Sagittarius A* ...
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