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Earth and our entire Milky Way galaxy may sit inside a mysterious giant hole which makes the cosmos expand faster here than ...
Sgr A* at the heart of the Milky Way has a mass 4.3 million times that of the sun, while the supermassive black hole in the galaxy Messier 87 (M87) has a mass around 5 billion times that of our ...
Black holes are one of the most mysterious cosmic phenomena, despite how much we continue to learn about them. While considered a mathematical possibility for many years, the first black hole ...
A new study of super-fast-moving stars suggests that they were accelerated by a monster black hole that's been lurking unseen in the galaxy next door. This appears to be the closest supermassive ...
According to a provocative new study, that might just be our cosmic address. This idea is meant to solve one of the biggest puzzles in cosmology: the Hubble tension. This long-standing discrepancy ...
Certainly, every galaxy is capable of producing an enormous number — roughly a handful every century — of small black holes with masses of up to 100 or so times that of the sun. And it appears ...
Astronomers have spotted an apparent supermassive black hole snacking on a star 600 million light-years away, wandering through a galaxy with an even larger black hole at its core.