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Meteoroid - Wikipedia, the free encyclopedia
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A meteoroid is a sand to boulder-sized particle of debris in the Solar System. The visible path of a meteoroid that enters Earth's (or another body's) atmosphere is called a meteor . If a mete...
en.wikipedia.org/wiki/Meteoroid
Other meteoroids come from the Moon from comets and from the planet Mars. Meteoroid Orbits; Meteoroids orbit around the Sun; different meteoroids travels at different speeds and in different orbits. Some meteoroids orbit together (called stream component);
www.enchantedlearning.com/subjects/astronomy/meteor/met... www.enchantedlearning.com/subjects/astronomy/meteor/meteoroid.shtml · Cached
A meteoroid is matter revolving around the sun or any object in interplanetary space that is too small to be called an asteroid or a comet. Even smaller particles are called micrometeoroids or cosmic dust grains, which includes any interstellar material that should happen to enter our solar system.
www.solarviews.com/eng/meteor.htm · Cached
A meteoroid is a piece of stone-like or metal-like debris which travels in outer space. Most meteoroids are no bigger than a pebble. Large meteoroids are believed to come from the asteroid belt. Some of the smaller meteoroids may have come from the Moon or Mars.
starchild.gsfc.nasa.gov/docs/StarChild/solar_system_lev... starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/meteoroids.html · Cached
A meteoroid which strikes the Earth (or other large body) is called a meteorite. As a meteoroid encounters the Earth's atmosphere frictional heating begins at an altitude of 100 to 120 km. What happens next depends on the speed, mass, and friability (tendency to break up) of the meteoroid.
www.daviddarling.info/encyclopedia/M/meteoroid.html www.daviddarling.info/encyclopedia/M/meteoroid.html
A meteor is a bright streak of light in the sky (a "shooting star" or a "falling star") produced by the entry of a small meteoroid into the Earth's atmosphere. If you have a dark clear sky you will probably see a few per hour on an average night;
www.nineplanets.org/meteorites.html www.nineplanets.org/meteorites.html · Cached
NASA astronomers watched it form: "On May 2, 2006, a meteoroid hit the Moon's Sea of Clouds (Mare Nubium) with 17 billion joules of kinetic energy—that's about the same as 4 tons of TNT," says Bill Cooke, the head of NASA's Meteoroid Environment Office in Huntsville, AL.
science.nasa.gov/headlines/y2006/13jun_lunarsporadic.ht... science.nasa.gov/headlines/y2006/13jun_lunarsporadic.htm · Cached
NASA Meteoroid Environment Office (MEO) ... Lead NASA technical work on the meteoroid environment; coordinate the existing meteoroid expertise at NASA centers. ... Develop, maintain, and distribute a new and more accurate sporadic meteoroid model.
www.nasa.gov/offices/meo/home/index.html