Outer space
The near-perfect vacuum expanse beyond Earth's atmosphere and between celestial bodies.
Quick Facts: Who was Outer space?
- Subject:
- Outer space
- Known for:
- The near-perfect vacuum expanse beyond Earth's atmosphere and between celestial bodies.
- Verified Source:
- 2Day Chrono-Wiki & Primary Historical Archives
Origins & Early Life
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).
Career & Major Achievements
The plasma between galaxies is thought to account for about half of the baryonic (ordinary) matter in the observable universe, having a number density of less than one hydrogen atom per cubic metre and a kinetic temperature of millions of kelvins. Local concentrations of matter have condensed into stars and galaxies. Intergalactic space takes up most of the volume, but even galaxies and star systems consist almost entirely of empty space.
Enduring Legacy & Impact
Most of the remaining mass-energy is made up of an unknown form, dubbed dark matter and dark energy. Outer space does not begin at a definite altitude above Earth's surface.
Notable Quotes by Outer space
“The Kármán line is conventionally used as the start of outer space.” (2011)
Historical Fact-Check Quiz: Outer space
True or False: “Outer space is a true vacuum, meaning it contains absolutely no particles or electromagnetic radiation.”
Answer (FALSE ❌): Outer space is not a true vacuum; it is a plasma permeated by hydrogen, helium, cosmic rays, and electromagnetic radiation.
Contemporary Figures & Related Historical Timelines
- Outer Space Treaty — Chrono-Wiki Encyclopedia Entry: The foundational multilateral treaty governing all activities in outer space.
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- Ouyang Xiu — Chrono-Wiki Encyclopedia Entry: Central figure of the Eight Masters, renowned Song Dynasty scholar, poet, and historian.
- Ouyang Xun — Chrono-Wiki Encyclopedia Entry: Master calligrapher, politician, and scholar of the Early Tang Dynasty.
- Ovadia Yosef — Chrono-Wiki Encyclopedia Entry: Influential Iraqi-born Talmudic scholar and Sephardi Chief Rabbi of Israel.
- Overijssel — Chrono-Wiki Encyclopedia Entry: A historical Dutch province in the eastern Netherlands, known for its varied landscape and culture.
Frequently Asked Questions about Outer space
Who was Outer space and what are their primary contributions?
The near-perfect vacuum expanse beyond Earth's atmosphere and between celestial bodies. Origins & Early Life: 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).
Where can I read more verified chronological archives on Outer space?
Explore verified primary sources, interactive timelines, and contemporary figures in the 2Day Chrono-Wiki encyclopedia or review the original entry on Wikipedia.
Source: Wikipedia