Name one of the three main theories concerning what will eventually happen to the universe?
#44050. Asked by Hamlet.. (Feb 04 04 10:20 PM)
Until fairly recent times, even the scientific view of the Universe was one of eternal and unchanging existence. After Edwin Hubble's discovery of an expanding Universe, suddenly the notion of a start and, possibly, an end, was the subject of scientific investigation. |
Theories can be divided into three major groups:
1) that, despite the observation, the Universe is eternal as believed before: steady-state Universe and oscillatory Universe.
2) that the Universe had a beginning, but not a proper end: heat-death of the Universe and the Big Rip
3) that the Universe had a beginning, and will end in some way: Big Crunch
All theories must come to terms with General Relativity, which provides a common background for cosmological speculation. Most of these theories are solutions of GR equations, only changing parameters like average density, cosmological constant, etc.
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