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Outer space (or simply space) is the expanse beyond celestial bodies and their atmospheres. 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.
May 6, 2024 · Atom: The basic building block of matter. It is made of protons, neutrons, and electrons. There are many different kinds of atoms. For example, the simplest atom with one proton and one electron is a hydrogen atom. An atom with six protons, six neutrons, and six electrons is a carbon atom. Aurora australis: Bright glows and bands of light that ...
Nov 27, 2023 · Earth ends and outer space starts at the Kármán line, some 62 miles (100 kilometers) above the planet’s surface. In this photograph captured by an astronaut aboard the International Space ...
OUTER SPACE - Synonyms, related words and examples | Cambridge English Thesaurus
Outer space is the space that exists outside of any celestial body, planet, asteroid, galaxy, etc. It is that void which exists outside of the earth’s atmosphere. Outer space has a low density of particles in a high vacuum. Energy passes through outer s.
Mar 29, 2023 · The edge of the solar system. How did the solar system form? The order of the planets in the solar system, starting nearest the sun and working outward is the following: Mercury, Venus, Earth ...
Define outer space. outer space synonyms, outer space pronunciation, outer space translation, English dictionary definition of outer space. n. Any region of space beyond limits determined with reference to the boundaries of a celestial body or system, especially: a.
