Eschatology

This is a list of people who have been said to be a messiah, either by themselves or by their followers.

Gog and Magog (/ɡɒɡ/; /ˈmeɪɡɒɡ/; Hebrew: גּוֹג וּמָגוֹג Gog u-Magog) in the Hebrew Bible may be individuals, peoples, or lands; a prophesied enemy nation of God's people according to the Book of Ezekiel, and one of the nations according to Genesis descended from Japheth son of Noah.

The stability of the Solar System is a subject of much inquiry in astronomy.

Survivalism is a movement of individuals or groups (called survivalists or preppers) who are actively preparing for emergencies, including possible disruptions in social or political order, on scales from local to international.

The ultimate fate of the universe is a topic in physical cosmology.

The heat death of the universe is a possible ultimate fate of the universe in which the universe has diminished to a state of no thermodynamic free energy and therefore can no longer sustain processes that increase entropy (including computation and life).

Immortality is eternal life, the ability to live forever.

Mutual assured destruction or mutually assured destruction (MAD) is a doctrine of military strategy and national security policy in which a full-scale use of nuclear weapons by two or more opposing sides would cause the complete annihilation of both the attacker and the defender (see pre-emptive nuclear strike and second strike).

Nuclear winter (also known as atomic winter) is a hypothesized global climatic effect most often considered a potential threat following a countervalue (or city-targeted), nuclear war, as a result of city and natural wildfire firestorms.

World War III (WWIII or WW3) and Third World War are names given to a hypothetical third worldwide military conflict subsequent to World Wars I and II.

The Big Crunch is one possible scenario for the ultimate fate of the universe, in which the metric expansion of space eventually reverses and the universe recollapses, ultimately ending as a black hole singularity or causing a reformation of the universe starting with another big bang.

Millennialism (from millennium, Latin for "thousand years"), or chiliasm in Greek, is a belief held by some Christian denominations that there will be a Golden Age or Paradise on Earth in which "Christ will reign" for 1000 years prior to the final judgment and future eternal state (the "World to Come" of the New Heavens and New Earth).

In future studies, human extinction is the hypothetical end of the human species.

The eschatology of Jehovah's Witnesses is central to their religious beliefs.

The technological singularity (also, simply, the singularity) is the hypothesis that the invention of artificial superintelligence will abruptly trigger runaway technological growth, resulting in unfathomable changes to human civilization.

Observations suggest that the expansion of the universe will continue forever.

This is a list of predicted dates for events that would result in a massive or total collapse of humanity, civilization, the planet, or the entire universe made by diverse individuals or groups thereof.

The Messianic Age is a theological term referring to a future time of universal peace and brotherhood on the earth, without crime, war and poverty.

Doomsday cult is an expression used to describe groups who believe in apocalypticism and millenarianism, and can refer both to groups that prophesy catastrophe and destruction, and to those that attempt to bring it about.

Resurrection of the dead, or resurrection from the dead (Koine: ἀνάστασις [τῶν] νεκρῶν, anastasis [ton] nekron; literally: "standing up again of the dead"; is a term frequently used in the New Testament and in the writings and doctrine and theology in other religions to describe an event by which a person, or people are resurrected (brought back to life). In the New Testament of the Christian bible, the three common usages for this term pertain to (1) the Christ, rising from the dead; (2) the rising from the dead of all men, at the end of this present age and (3) the resurrection of certain ones in history, who were restored to life. Predominantly in Christian eschatology, the term is used to support the belief that the dead will be brought back to life in connection with end times. Variou

Nuclear famine is a hypothesized famine considered a potential threat following global or regional nuclear exchange.

The biological and geological future of Earth can be extrapolated based upon the estimated effects of several long-term influences.

A nuclear holocaust or nuclear apocalypse would be widespread death, destruction and fallout possibly causing the collapse of [modern] civilization, through the use of nuclear weapons.