Changes

In the special case of phantom dark energy, which has even more negative pressure than a simple cosmological constant, the density of dark energy increases with time, causing the rate of acceleration to increase, leading to a steady increase in the Hubble constant. As a result, all material objects in the universe, starting with galaxies and eventually, all forms, no matter how small, will disintegrate into unbound elementary particles and radiation, ripped apart by the phantom energy force and shooting apart from each other. The end state of the universe is a singularity, as the dark energy density and expansion rate becomes infinite. For a possible timeline based on current physical theories, see 1 E19 s and more. This universe will end approximately 100 billion years from now.

In the special case of phantom dark energy, which has even more negative pressure than a simple cosmological constant, the density of dark energy increases with time, causing the rate of acceleration to increase, leading to a steady increase in the Hubble constant. As a result, all material objects in the universe, starting with galaxies and eventually, all forms, no matter how small, will disintegrate into unbound elementary particles and radiation, ripped apart by the phantom energy force and shooting apart from each other. The end state of the universe is a singularity, as the dark energy density and expansion rate becomes infinite. For a possible timeline based on current physical theories, see 1 E19 s and more. This universe will end approximately 100 billion years from now.

===Heat death===

===Heat death===

After the Stelliferous Epoch, all hydrogen in the universe will be exhausted. Then, only remnants remain. After 10¹⁷ billion years from now, [[protons]] will decay into a positron, and a pion. All particles will decay, leaving behind nothing but simple particles. The rate of entropy will be at a maximum, and nothing will interact ever again.

After the Stelliferous Epoch, all hydrogen in the universe will be exhausted. Then, only remnants remain. Some Grand Unified Theories predict that [[protons]] will decay into a positron, and a pion<ref>http://io9.gizmodo.com/5958012/how-one-tiny-particle-could-end-the-universe</ref>. Experiments have not detected proton decay, suggesting that the half life of a [[proton]] is at least 10¹⁷ billion years. All that will remain will be [[fundamental particles]] such as [[leptons]] and [[photon]]s. The rate of entropy will be at a maximum. There will be no real structure to the universe, such as stars. The universe will be devoid of life.

==Religious Views==

==Religious Views==