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The heat death of the universe (also known as the Big Chill or Big Freeze) [1] [2] is a hypothesis on the ultimate fate of the universe, which suggests the universe will evolve to a state of no thermodynamic free energy, and will therefore be unable to sustain processes that increase entropy.
An important parameter in fate of the universe theory is the density parameter, omega (), defined as the average matter density of the universe divided by a critical value of that density. This selects one of three possible geometries depending on whether Ω {\displaystyle \Omega } is equal to, less than, or greater than 1 {\displaystyle 1} .
The prevailing theory is that the universe will cool as it expands, eventually becoming too cold to sustain life. For this reason, this future scenario once popularly called " Heat Death " is now known as the "Big Chill" or "Big Freeze".
Heat death of the universe – Possible fate of the universe List of other end scenarios than Heat Death – Theories about the end of the universe Timeline from Big Bang to the near cosmological future – Visual representation of the universe's past, present, and future Pages displaying short descriptions of redirect targets
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.
In physical cosmology, the Big Rip is a hypothetical cosmological model concerning the ultimate fate of the universe, in which the matter of the universe, from stars and galaxies to atoms and subatomic particles, and even spacetime itself, is progressively torn apart by the expansion of the universe at a certain time in the future, until distances between particles will infinitely increase.
Photo Illustration by Kelly Caminero / The Daily Beast / Getty The universe is expanding. No one with any expertise in astronomy or physics disagrees with that fact.Likewise, nobody really ...
Teilhard's theory is based on four "properties": Humans will escape the heat death of the universe. He theorizes that since radial energy is non-compliant with entropy, it escapes the collapses of forces at world's end. The Omega Point does not exist within the timeline of the universe, it occurs at the exact edge of the end of time.