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Vor 2 Tagen · The black holes that we know and detect today are the product of stellar collapse, when the center of a massive star caves in on itself to form a region so dense that it can bend space-time such that anything — even light — gets trapped within. Such “astrophysical” black holes can be anywhere from a few times as massive as the sun to many billions of times more massive.
30. Mai 2024 · Black holes are known for exhibiting gravity so strong that light can't even escape, and while Albert Einstein's theory of general relativity in 1915 is often credited with first proposing the...
20. Mai 2024 · As predicted by Einstein's theory of gravity, there's a point at which material stops circling the black hole and falls straight down, plunging precipitously beyond the point of no return. Now, in X-ray data of an active black hole, we've finally seen proof that this 'plunging region' exists.
Vor 4 Tagen · Black hole, cosmic body of extremely intense gravity from which nothing, not even light, can escape. It can be formed by the death of a massive star wherein its core gravitationally collapses inward upon itself, compressing to a point of zero volume and infinite density called the singularity.
Vor einem Tag · A black hole is a region of spacetime where gravity is so strong that nothing, not even 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.
17. Mai 2024 · 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.
27. Mai 2024 · A black hole is a celestial body so dense that even light cannot escape its gravitational pull. It is a point of no return, a cosmic wonder that challenges our understanding of the universe. In this article, we delve into their formation, appearance, and role in the universe.
