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  1. www.nasa.gov › universe › what-are-black-holesWhat Are Black Holes? - NASA

    8 de sept. de 2020 · A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it. A black holes “surface,” called its event horizon, defines the boundary where the velocity needed to escape exceeds the speed of light, which is the speed limit of the cosmos.

  2. Hace 4 días · 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. In this visualization of a flight toward a supermassive black hole, labels highlight many of the fascinating features produced by the effects of general relativity along the way.

  3. 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.

  4. en.wikipedia.org › wiki › Black_holeBlack hole - Wikipedia

    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.

  5. 6 de nov. de 2023 · Nov 06, 2023. Article. Astronomers have discovered the most distant black hole yet seen in X-rays, using NASA telescopes. The black hole is at an early stage of growth that had never been witnessed before, where its mass is similar to that of its host galaxy.

  6. 12 de may. de 2022 · Event Horizon Telescope Collaboration. By Liz Kruesi and Emily Conover. May 12, 2022 at 9:38 am. There’s a new addition to astronomers’ portrait gallery of black holes. Astronomers announced...

  7. 01. Closest. The nearest known black hole, called Gaia BH1, is about 1,500 light-years away. 02. Farthest. The most distant black hole detected, at the center of a galaxy called QSO J0313-1806, is around 13 billion light-years away. 03. Biggest. The most massive black hole observed, TON 618, tips the scales at 66 billion times the Sun’s mass. 04.