What Are Black Holes? - NASA
WEBSep 8, 2020 · A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it. A black hole’s “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.
Black hole - Wikipedia
WEBA 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. [2]
Black holes: Everything you need to know | Space
WEBMay 6, 2022 · Black holes are real, they're some of the strangest objects in space. Discover what black holes are and how they form with our informative black hole guide.
Black Holes - NASA Science
WEBThey’re huge concentrations of matter packed into very tiny spaces. A black hole is so dense that gravity just beneath its surface, the event horizon, is strong enough that nothing – not even light – can escape. The event horizon isn’t a …
Black holes, explained by an astrophysicist - Astronomy Magazine
WEBDec 11, 2023 · Discovered in 2022 by the European Space Agency’s Gaia mission (hence the name), the black hole sits 1,560 light-years away. There are probably black holes closer to us, but these objects are ...
1st results of XRISM X-ray space telescope reveal black hole and ...
WEB23 hours ago · XRISM studied the supermassive black hole at the heart of the spiral galaxy NGC 4151 to learn about how the cosmic titan, which has a mass 30 million times greater than the sun, consumes matter ...
NASA's Hubble Finds More Black Holes than Expected in the Early ...
WEB4 days ago · Sep 17, 2024. Article. With the help of NASA's Hubble Space Telescope, an international team of researchers led by scientists in the Department of Astronomy at Stockholm University has found more black holes in the early universe than has previously been reported. The new result can help scientists understand how …
NASA Animation Sizes Up the Universe’s Biggest Black Holes
WEBMay 1, 2023 · The new NASA animation shows 10 supersized black holes that occupy center stage in their host galaxies, including the Milky Way and M87, scaled by the sizes of their shadows. Starting near the Sun, the camera steadily pulls back to compare ever-larger black holes to different structures in our solar system.
NASA-Led Study Explains Decades of Black Hole Observations
WEBJun 14, 2013 · A new study by astronomers at NASA, Johns Hopkins University and the Rochester Institute of Technology confirms long-held suspicions about how stellar-mass black holes produce their highest-energy light. This animation of supercomputer data takes you to the inner zone of the accretion disk of a stellar-mass black hole.
Black hole jets on the scale of the cosmic web | Nature
WEB3 days ago · For the past 50 years, the known size range of black hole jet pairs ended at 4.6–5.0 Mpc (refs. 7, 8, 9), or 20–30% of a cosmic void radius in the Local Universe 10. An observational lack of ...