Hawking radiation
Hawking radiation
.The process by which a
black hole can apparently evaporate into space. When
virtual particles are produced in the near vicinity of a black hole, it is possible for one member of the matter-antimatter pair to be pulled into the black hole whilst the other escapes into space. The particle which falls into the black hole negates some of its mass and so the black hole shrinks a little. This makes it look as if the particle which escaped into space has come from the black hole and gives the appearance that the black hole is evaporating. This process was theorised to take place by Cambridge astronomer Stephen Hawking and is the subject of observational searches. As yet, however, no direct evidence for it has been found.