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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 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 Holes - NASA Science
Black holes are among the most mysterious cosmic objects,...
- Black Hole Image Makes History; NASA Telescopes Coordinated ...
Apr 10, 2019. Article. A black hole and its shadow have been...
- Black Hole Anatomy - Science@NASA
Anatomy of a Black Hole Event Horizon This is what makes a...
- Black Holes - NASA Science
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.
- 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...
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.
12 de may. de 2022 · Astronomy. We finally have an image of the black hole at the heart of the Milky Way. The behemoth, Sagittarius A*, appears as a faint shadow surrounded by glowing material. The Event Horizon...
