Glossary term: Meteoroid
Description: A meteoroid is a fragment of an asteroid or comet with a size ranging from a few millimeters to several tens of meters. These can fall towards any celestial object, with or without an atmosphere, at very high speed. If the celestial body has an atmosphere the meteroid is slowed by collisions with atmospheric molecules. We observe meteroids in Earth's atmoshpere meteors. If the meteoroid is not completely destroyed in the atmosphere (or if the celestial body has no atmosphere) it falls to the surface of that body, and then it is called a meteorite.Related Terms:
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Term and definition status: This term and its definition is still awaiting approval
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