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8 de set. 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.
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.
25 de mai. de 2024 · 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 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 surface like Earth’s or even the Sun’s. It’s a boundary that contains all the matter that makes up the black hole.
A presença de um buraco negro pode ser inferida por meio da interação com outra matéria e com radiação eletromagnética, como a luz visível. A matéria que cai em um buraco negro pode formar um disco de acreção externa aquecido por fricção, formando alguns dos objetos mais brilhantes do universo.
20 de set. de 2018 · National Geographic. 23.1M subscribers. Subscribed. 87K. 7.7M views 5 years ago #BlackHoles #NationalGeographic #Educational. At the center of our galaxy, a supermassive black hole churns....
Há 1 dia · By Maya Wei-Haas. 6 min read. Black holes are points in space that are so dense they create deep gravity sinks. Beyond a certain region, not even light can escape the powerful tug of a black...
