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17 de jun. de 2024 · Scientists have been trying to directly observe dark matter, the elusive and invisible substance that accounts for most of the universe’s mass, for decades.
19 de jun. de 2024 · Sudden brightness in a distant galaxy has caused astronomers to observe an unprecedented celestial sight: the awakening of a supermassive black hole.
24 de jun. de 2024 · A supermassive black hole (SMBH) is an extremely large black hole, on the order of hundreds of thousands to billions of solar masses (M ☉), and is theorized to exist in the center of almost all massive galaxies.
29 de jun. 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...
Hace 2 días · Stellar black holes (SBHs) are born from the death of massive stars. Their masses ranges from 3 to 100 solar masses, i.e., the mass of the Sun (approximately 1.99 × 10 30 kilograms). Intermediate ...
Hace 2 días · A supermassive black hole (SMBH or sometimes SBH) is the largest type of black hole, with its mass being on the order of hundreds of thousands, or millions to billions, of times the mass of the Sun (M ☉).
13 de jun. de 2024 · A black hole is an area of such immense gravity that nothing—not even light—can escape from it. Black holes form at the end of some stars’ lives. The energy that held the star together disappears and it collapses in on itself producing a magnificent explosion.
