outer space definition?
Paragraph definition of outer space?
- 8 years agoBest Answer
Outer space, or simply space, is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing a low density of particles: predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, and neutrinos. Observations and theory suggest that it also contains dark matter and dark energy. The baseline temperature, as set by the background radiation left over from the Big Bang, is only 3 Kelvin (K); in contrast, temperatures in the coronae of stars can reach over a million Kelvin. Plasma with an extremely low density (less than one hydrogen atom per cubic meter) and high temperature (millions of Kelvin) in the space between galaxies accounts for most of the baryonic (ordinary) matter in outer space; local concentrations have condensed into stars and galaxies. Intergalactic space takes up most of the volume of the Universe, but even galaxies and star systems consist almost entirely of empty space.
There is no firm boundary where space begins. However the Kármán line, at an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space for the purpose of space treaties and aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which was passed by the United Nations in 1967. This treaty precludes any claims of national sovereignty and permits all states to explore outer space freely. In 1979, the Moon Treaty made the surfaces of objects such as planets, as well as the orbital space around these bodies, the jurisdiction of the international community. Additional resolutions regarding the peaceful uses of outer space have been drafted by the United Nations, but these have not precluded the deployment of weapons into outer space, including the live testing of anti-satellite weapons.
- Anonymous8 years ago
1. space beyond the atmosphere of the earth.
2. deep space.
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Based on the Random House Dictionary, © Random House, Inc. 2012. ..."
- hairsterLv 43 years ago
It relies upon upon how the sunlight hours vanishes. If the sunlight hours without notice converted from count to capacity (and this adventure actual exceeded off on the various edge of the Universe) of path you may get waves and the Earth could pass decrease to and fro. If the sunlight hours have been to alter ultimate right into a black hollow gravitons could pass decrease to and fro and the Earth could stay the situation it replaced into. If the sunlight hours replaced into to be pulled interior the path of an very great accreting black hollow it ought to the two be pulled in and maybe via ability of or pulled previous and improve up being thrust into outer area, the Earth with it.
- Billy ButtheadLv 78 years ago
Beyond earth's atmosphere.