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4th millennium

File:Red_Giant_Earth_warm.jpg · Wikimedia Commons · See Wikimedia Commons

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4th millennium

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Also known as 4th-millennium

millennium spanning the years 3001 to 4000

Wikidata facts

Show 4 more facts
start time
3001-01-01
end time
4000-12-31
Commons category
4th millennium
point in time
4000-01-01

via Wikidata · CC0

~5 min read

Article

Artist's concept of the Earth 5–7.5 billion years from now, when the Sun has become a red giant

While the future cannot be predicted with certainty, present understanding in various scientific fields allows for the prediction of some far-future events, if only in the broadest outline. These fields include astrophysics, which studies how planets and stars form, interact and die; particle physics, which has revealed how matter behaves at the smallest scales; evolutionary biology, which studies how life evolves over time; plate tectonics, which shows how continents shift over millennia; and sociology, which examines how human societies and cultures evolve.

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