THE SPACE.
https://www.space.com › ... › Science & Astronomy
Feb 17, 2022 — Stars, planets, asteroids and comets; Galaxies and quasars. We often refer to our expanding universe with one simple word: space. But where does ...
Invisible radiation · Dark matter and energy · Black holes
: a boundless three-dimensional extent in which objects and events occur and have relative position and direction. infinite space and time.
What is space made of?
Outer space - Wikipedia
Outer space is not completely empty; it is a near-perfect vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium as well as electromagnetic radiation, magnetic fields, neutrinos, dust, and cosmic rays.
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