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1 day 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. [2] Einstein 's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.
- Simple English
The supermassive black hole inside the core of the...
- Talk
Black hole is a former featured article.Please see the links...
- List of Black Holes
1ES 2344+514; Ton 618 (this quasar has possibly the biggest...
- Spacetime
In physics, spacetime is a mathematical model that fuses the...
- Update
We would like to show you a description here but the site...
- Event Horizon
The reachable Universe as a function of time and distance,...
- Black Body
An approximate realization of a black body as a tiny hole in...
- Messier 87
It has an active supermassive black hole at its core, which...
- Cygnus X-1
Cygnus X-1 (abbreviated Cyg X-1) is a galactic X-ray source...
- Simple English
3 days ago · In this flight toward a supermassive black hole, labels highlight many of the fascinating features produced by the effects of general relativity along the way. 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 ...
2 days ago · The slow leak of what’s now known as Hawking radiation would, over time, cause the black hole to simply evaporate. This infographic shows the estimated lifetimes and event horizon –– the point past which infalling objects can’t escape a black hole’s gravitational grip –– diameters for black holes of various small masses.
1 day ago · Approaching the black hole from 400 million miles away, viewers see dramatic distortions in space-time. The surrounding accretion disk -- a swirling mass of hot gas -- and background stars appear ...
3 days ago · Having failed to persuade Gandhi of the necessity of this, Bose organised mass protests in Calcutta calling for the removal of the "Holwell Monument", which then stood at the corner of Dalhousie Square in memoriam of those who died in the Black Hole of Calcutta.
4 days ago · Definitions of Black Hole of Calcutta. noun. a dungeon (20 feet square) in a fort in Calcutta where as many as 146 English prisoners were held overnight by Siraj-ud-daula; the next morning only 23 were still alive. see more.
