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A black hole is a region of spacetime wherein gravity is so strong that no matter or electromagnetic energy (e.g. light) can escape it. [2] Albert Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. [3] [4] The boundary of no escape is called the event horizon.
- Simple English
A black hole is a region of space-time from which nothing,...
- 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...
- Supermassive Black Hole
The first direct image of a supermassive black hole, found...
- Spacetime
In physics, spacetime, also called the space-time continuum,...
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We would like to show you a description here but the site...
- David Finkelstein
David Ritz Finkelstein: Quantum relativity: a synthesis of...
- Black Hole (Disambiguation)
Stellar black hole, a black hole formed by a collapsed star;...
- Simple English
Magnetar found very close to the supermassive black hole, Sagittarius A*, at the center of the Milky Way galaxy. The comparatively small mass of this supermassive black hole, along with the low luminosity of the radio and infrared emission lines, imply that the Milky Way is not a Seyfert galaxy.
This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M ☉), approximately 2 × 10 30 kilograms. Introduction Comparisons of large and small black holes in galaxy OJ 287 to the Solar System
Learn about black holes, regions of space-time where nothing, not even light, can escape. Find out how they are formed, what they look like, and how they affect other things near them.
20 Ιαν 2023 · English: Black holes are cosmic objects that harbour a gravitational field so powerful that nothing, not even light, can escape. They are forged in the furnaces of dying stars that are of a sufficient mass.
Astronomers generally divide black holes into three categories according to their mass: stellar-mass, supermassive, and intermediate-mass. The mass ranges that define each group are approximate, and scientists are always reassessing where the boundaries should be set.
8 Σεπ 2020 · Learn about black holes, their formation, classes, and observations from NASA. Find out how they are detected by gravitational waves, radio waves, X-rays, and images.
