The event horizon is a boundary that marks the outer edge of black holes. It is the point at which nothing, not even light, can escape.
A black hole is an object with a gravitational field so powerful that a region of space bees cut off from the rest of the universe – no matter or radiation including visible light that has entered the region can ever escape. The lack of escaping electromagic radiation renders th...
Black Holesstatistical fluctuationsupper boundHubble horizonAccording to the third law of Thermodynamics, it takes an infinite number of steps for any object, including black-holes, to reach zero temperature. For any physical system, the process of cooling to absolute zero corresponds to erasing ...
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General relativity is a physical theory about space and time and it has a beautiful mathematical description. According to general relativity, the spacetime is a 4-dimensional object that has to obey an equation, called the Einstein equation, which explains how the matter curves the spacetime. ...
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WASHINGTON, Oct. 2 (Xinhua) -- Physicists still cannot tell what exactly the dark matter is, but now they know more about what it is not. It is not black hole, according to a study published on Tuesday in the journal Physical Review Letters. ...
NGC 300 X-1 is a Wolf-Rayet/Black-Hole binary We present Very Large Telescope/FORS2 time-series spectroscopy of the WolfRayet (WR) star #41 in the Sculptor group galaxy NGC 300. We confirm a physical a... PA Crowther,R Barnard,S Carpano,... - 《Monthly Notices of the Royal ...
Caroline Delbert is a writer, avid reader, and contributing editor at Pop Mech. She's also an enthusiast of just about everything. Her favorite topics include nuclear energy, cosmology, math of everyday things, and the philosophy of it all. ...
Once an object crosses this boundary, it is inevitably pulled into the black hole. The center of a black hole, where all of its mass is concentrated, is called the singularity. Gravitational Constant The gravitational constant (G) is a fundamental constant in physics that describes the strength...