Black hole
From Wikimedia Commons, the free media repository
Black holes are cosmic objects that harbour a gravitational field so powerful that nothing, not even light or radiation can escape. They are forged in the furnaces of dying stars, that are of a sufficient size and volume.
 An illustration of a black hole. |
 An artist's portrayal of a black hole in the Milky Way gallaxy. |
 Animated simulation of gravitational lensing caused by a going past a background galaxy; because light cannot escape black holes, this effect is perceived by an exterior viewer. |
 The merging of two black holes. |
 The black hole is the "cross" shape at the center of the galaxy. |
 A concept drawing by NASA showing the accretion lines from a black hole. |
