Meteoroid

2008 TC3 meteorite fragments found on February 28, 2009, in the Nubian Desert, Sudan

Meteor seen from the site of the Atacama Large Millimeter Array (ALMA)[18]

A meteoroid is a small rocky or metallic body travelling through outer space. Meteoroids are significantly smaller than asteroids, and range in size from small grains to 1 meter-wide objects. Objects smaller than this are classified as micrometeoroids or space dust. Most are fragments from comets or asteroids, whereas others are collision impact debris ejected from bodies such as the Moon or Mars.

单词	Faxed star
释义	Faxed star 英语百科 Meteoroid A meteoroid is a small rocky or metallic body travelling through outer space. Meteoroids are significantly smaller than asteroids, and range in size from small grains to 1 meter-wide objects. Objects smaller than this are classified as micrometeoroids or space dust. Most are fragments from comets or asteroids, whereas others are collision impact debris ejected from bodies such as the Moon or Mars.
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Faxed star

Meteoroid