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Draft:Outline of outer space

From Wikipedia, the free encyclopedia

The following outline is provided as an overview of and topical guide to outer space:

Outer space (or simply space) is the expanse that exists beyond Earth's atmosphere and between celestial bodies. It contains ultra-low levels of particle densities, constituting a near-perfect vacuum of predominantly hydrogen and helium plasma, permeated by electromagnetic radiation, cosmic rays, neutrinos, magnetic fields and dust. The baseline temperature of outer space, as set by the background radiation from the Big Bang, is 2.7 kelvins (−270 °C; −455 °F).

What type of thing is outer space?

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Outer space can be described as all of the following:

Regions of outer space

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Fields that study outer space

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History of outer space

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General outer space concepts

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Outer space organizations

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Outer space publications

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Persons involved with outer space

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See also

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References

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