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Hace 2 días · A black hole is a region of spacetime where gravity is so strong that nothing, including light and other electromagnetic waves, is capable of possessing enough energy to escape it. Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.
Hace 18 horas · Black holes generate beams when material falls onto them via a spinning disk of matter and some of it then gets redirected outward. The direction of the beams from each of these giant black holes, which are likely spinning, is thought to align with the rotation axis of the black hole, meaning that the beams point along a line connecting the poles.
Hace 5 días · Using X-ray data to test Einstein’s theory of gravity, their study gives the first observational proof that a “plunging-region” exists around black holes: an area where matter stops circling the hole and instead falls straight in. Furthermore, the team found that this region exerts some of the strongest gravitational forces yet identified ...
Hace 1 día · For years, physicists have been looking to prove that black holes are more complex than they seem. And a newly approved European space mission called LISA will help us with this hunt.
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Hace 4 días · The observed black hole is in a system called MAXI J1820 + 070, which is made up of a star smaller than the sun and the black hole itself, estimated at 7 to 8 solar masses. The astronomers...
Hace 3 días · supermassive black hole (SMBH), a black hole more than one hundred thousand times the mass of the Sun. Nearly every large galaxy has a supermassive black hole at its centre. Active galactic nuclei , such as Seyfert galaxies and quasars , are powered by supermassive black holes.
Hace 4 días · Summaries. Headlines. Largest-Ever Map of Universe's Active Supermassive Black Holes Released. Mar. 18, 2024 — Astronomers have charted the largest-ever volume of the universe with a new map of...
