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22 billion years in the future is the earliest possible end of the Universe in the Big Rip scenario, assuming a model of dark energy with w = −1.5. [21] [22] False vacuum decay may occur in 20 to 30 billion years if the Higgs field is metastable. [23] [24] [25]
The Big Crunch is a hypothetical scenario for the ultimate fate of the universe, in which the expansion of the universe eventually reverses and the universe recollapses, ultimately causing the cosmic scale factor to reach absolute zero, an event potentially followed by a reformation of the universe starting with another Big Bang.
General relativity can be employed to describe the universe on the largest possible scale. There are several possible solutions to the equations of general relativity, and each solution implies a possible ultimate fate of the universe. Alexander Friedmann proposed several solutions in 1922, as did Georges Lemaître in 1927. [4]
The 1st-century bishop of Edessa predicted this date to be the birth date of the Antichrist and the end of the universe. [148] 23 Oct 1997 James Ussher: This 17th-century Irish archbishop predicted this date to be 6,000 years since creation and therefore the end of the world. [149] 31 Mar 1998 Hon-Ming Chen
However, it may still be possible to determine the expansion of the universe through the study of hypervelocity stars. [131] 1.05×10 12 (1.05 trillion) The estimated time by which the universe will have expanded by a factor of more than 10 26, reducing the average particle density to less than one particle per cosmological horizon volume ...
The theme is said to revolve around "mak[ing] contact with intelligent life, surviving the end of the universe, the physics of alien life, and more." [63] 30:15 In the third episode, "In Search of Giants," it will deal with "making contact with intelligent life, intergalactic civilizations, and surviving the end of the universe."
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This episode explores the theories of the big crunch, the big rip and the big freeze, that are postulated by physicists as possible fates for the universe. [3] Al-Khalili indicates that the difficulty in understanding this is our limited ability to comprehend something of such immensity both physically and philosophically. [4]