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History
Denison Olmsted
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Denison Olmsted was an American physicist and astronomer. Professor Olmsted is credited with giving birth to meteor science after the 1833 Leonid meteor shower over North America spurred him to study this phenomenon.
Denison Olmsted
Denison Olmsted
Image: Appletons' Olmsted Denison
Image: Appletons' Olmsted Denison
Meteoroid
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A meteoroid is a small rocky or metallic body in outer space. Meteoroids are distinguished as objects significantly smaller than asteroids, ranging in size from grains to objects up to a meter wide. Objects smaller than meteoroids are classified as micrometeoroids or space dust. Many are fragments from comets or asteroids, whereas others are collision impact debris ejected from bodies such as the Moon or Mars.
Meteoroid embedded in aerogel; the meteoroid is 10 µm in diameter and its track is 1.5 mm long
Meteoroid embedded in aerogel; the meteoroid is 10 µm in diameter and its track is 1.5 mm long
2008 TC3 meteorite fragments found on February 28, 2009, in the Nubian Desert, Sudan
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)
Meteor seen from the site of the Atacama Large Millimeter Array (ALMA)
A meteor of the Leonid meteor shower; the photograph shows the meteor, afterglow, and wake as distinct components
A meteor of the Leonid meteor shower; the photograph shows the meteor, afterglow, and wake as distinct components