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22 hours ago · 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.
May 25, 2024 · Learn about black holes, cosmic bodies of extremely intense gravity from which nothing can escape. Find out how they are formed, what types exist, and how they are observed and studied.
- 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...
May 6, 2024 · Learn how black holes are formed, what they are made of, and how they affect space and time. Watch a video, download a poster, and read a transcript of this animation.
- 3 min
May 6, 2024 · Experience the effects of general relativity and the event horizon of a monster black hole in a new, immersive visualization produced on a NASA supercomputer. Watch the 360-degree video or explore the explainer videos and images to see how space-time, light, and time are distorted by gravity.
May 20, 2024 · The black hole in question is found in a system about 10,000 light-years away called MAXI J1820+070. This system contains a black hole about 8.5 times the mass of the Sun – and a binary companion star, from which the black hole strips material as the pair of objects orbit, feeding in bursts that manifest as X-ray flickering.
May 22, 2024 · Each black hole is in the center of a galaxy embedded in the hot gas. In the images below, labels and the radio images appear. Ellipses show a pair of cavities in the hot gas for Abell 478 (left) and ellipses show two pairs of cavities for NGC 5044 (right).
May 6, 2024 · This supercomputer visualization tracks a camera as it approaches, briefly orbits, and then crosses the event horizon — the point of no return — of a supersized black hole similar in mass to the one at the center of our galaxy. Credit: NASA's Goddard Space Flight Center/J. Schnittman and B. Powell.
