Tag Archives: Hawking radiation

Do space-time black-holes really exist?

Cosmologists, astrophysicists and other ‘space scientists’ have a good idea how massive objects such as stars, dwarf stars, neutrino stars, magnetars, galaxies and quasars function within our Universe today. Theoretically the mechanics of what forms a “black-hole” are understood by many physicists. But what is a black-hole?

The conventional explanation is that a black-hole is a region of space-time from which nothing, not even light can escape. A black-hole is formed by a stellar object that has collapsed in on itself due to the star’s own gravitational forces. Surrounding a black-hole is a mathematically defined region of space called an event horizon; this is a boundary where not only nothing can escape but also the current laws of physics break down. Where boundaries exist within scientific knowledge, usually a theory is incomplete.

Missing knowledge with black-hole theory is a problem, not least because the two main descriptions of the Universe are currently incompatible: relativity (general) and quantum theory. Black-holes were first postulated by Karl Schwarzschild. Many other physicists have subsequently analysed Albert Einstein‘s theory of general relativity and produced new insights into the theoretical behaviour of gravitationally large objects. Continue reading

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