Black Holes

Cosmic sink-holes or Black Holes are a region of spacetime from which nothing, not even light, can escape. The theory of general relativity predicts that a sufficiently compact mass will deform spacetime to form a black hole. Around a black hole there is a mathematically defined surface called an event horizon that marks the point of no return. It is called “black” because it absorbs all the light that hits the horizon, reflecting nothing, just like a perfect black body in thermodynamics. Quantum mechanics predicts that black holes emit radiation like a black body with a finite temperature. This temperature is inversely proportional to the mass of the black hole, making it difficult to observe this radiation for black holes of stellar mass or greater.

Life could actually survive inside a black hole

Black holes have a well-deserved reputation for being cosmic destroyers, ripping apart anything that comes into contact with their intense gravitational forces. But a radical new theory says advanced intelligent life could live on planets inside black holes.

How Supermassive Black Holes Merge

What happens when two compact objects with millions of times the mass of our sun collide? Two small galaxies come together, merge their stars, and you get a bigger galaxy. Galaxies get bigger and bigger through galactic mergers. Though, astronomers have always wondered: what happens with the two supermassive black holes (SMBHs) found at the center of many galaxies?
An international team of physicists have developed a computer simulation designed to answer this very question.


The Biggest Black Hole In The Universe Could Swallow Our Entire Solar System
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