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Vor 2 Tagen · 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.
Vor 3 Tagen · Another general feature of general relativity is the appearance of spacetime boundaries known as singularities. Spacetime can be explored by following up on timelike and lightlike geodesics—all possible ways that light and particles in free fall can travel.
Vor 3 Tagen · The universe appears to be a smooth spacetime continuum consisting of three spatial dimensions and one temporal dimension. Therefore, an event in the spacetime of the physical universe can therefore be identified by a set of four coordinates: (x, y, z, t).
Vor 16 Stunden · If Big Bang-induced black holes are indeed out there, they'd would be absolutely tiny — some could even be as small as a dime — and therefore possess masses equal to those of asteroids or ...
Vor 5 Tagen · 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.
Vor 4 Tagen · May 26, 2024. Top Headlines. Using Wobbling Stellar Material, Astronomers Measure the Spin of a Supermassive Black Hole for the First Time. May 22, 2024 — Astronomers have a new way to measure how...
Vor einem Tag · On May 29, 1919, a total solar eclipse helped to prove Albert Einstein's theory of general relativity. Einstein's theory suggested that gravity could bend light by curving the fabric of spacetime.
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