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Hace 2 días · 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.
- The Editors of Encyclopaedia Britannica
- A black hole is a cosmic body of extremely intense gravity from which even light cannot escape. Black holes usually cannot be observed directly, bu...
- The singularity constitutes the center of a black hole, hidden by the object’s “surface,” the event horizon. Inside the event horizon, the escape v...
- A black hole can be formed by the death of a massive star. At the end of a massive star's life, the core becomes unstable and collapses in upon its...
- One example of a black hole is can be found in Cygnus X-1, a binary X-ray system consisting of a blue supergiant and an invisible companion 14.8 ti...
6 de may. de 2024 · May 06, 2024. Article. Ever wonder what happens when you fall into a black hole? Now, thanks to a new, immersive visualization produced on a NASA supercomputer, viewers can plunge into the event horizon, a black hole’s point of no return. NASA Simulation’s Plunge Into a Black Hole: Explained. Watch on.
20 de may. de 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.
Hace 3 días · A black hole with the mass of a car would have a diameter of about 10 −24 m and take a nanosecond to evaporate, during which time it would briefly have a luminosity of more than 200 times that of the Sun. Lower-mass black holes are expected to evaporate even faster; for example, a black hole of mass 1 TeV/c 2 would take less than 10 −88 seconds to evaporate completely.
17 de may. de 2024 · Albert Einstein was right: There is an area at the edge of black holes where matter can no longer stay in orbit and instead falls in, as predicted by his theory of gravity.
16 de may. de 2024 · 16/05/2024 25460 views 96 likes. ESA / Science & Exploration / Space Science / Webb. An international team of astronomers have used the NASA/ESA/CSA James Webb Space Telescope to find evidence for an ongoing merger of two galaxies and their massive black holes when the Universe was only 740 million years old.
Hace 5 días · Astronomers at MIT, NASA, and elsewhere have a new way to measure how fast a black hole spins, by using the wobbly aftermath from its stellar feasting. The method takes advantage of a black hole tidal disruption event — a blazingly bright moment when a black hole exerts tides on a passing star and rips it to shreds.
