What is Outer Space explain in details?

Outer space is the region beyond Earth's atmosphere.

It is a near-perfect vacuum containing a low density of particles, predominantly

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a plasma of hydrogen and helium, as well as electromagnetic radiation,

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magnetic fields, neutrinos, dust, and cosmic rays.

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The baseline temperature of outer space, as set by the

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background radiation from the Big Bang, is 2.7 kelvins (−270 °C; −455 °F).

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Outer space is the closest known approximation to a perfect vacuum.

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It has effectively no friction, allowing stars, planets, and moons to move freely

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along their ideal orbits, following the initial formation stage.

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