A meteor is a visible streak of light caused by a small object burning up as it passes through Earth's atmosphere. This phenomenon, often called a shooting star, occurs in the mesosphere at high altitudes due to the object's rapid motion and collisions with air molecules, resulting in incandescence and a glowing trail. The term "meteor" originates from the Greek word meaning "high in the air."
1951: Water vapor drag theory demonstrated
In 1951, Fred Whipple demonstrated that comets can produce debris through water vapor drag, contributing to meteor shower formation.
1972: Earth-grazing fireball over North America
In 1972, an Earth-grazing fireball event occurred in broad daylight over North America, where a relatively small percentage of fireballs hit Earth's atmosphere and then pass out again.
1998: Sound recordings in Mongolia
In 1998, sound recordings made under controlled conditions in Mongolia supported the contention that certain meteor sounds are real.
2001: Electrophonic sounds during Leonid meteor shower
During the Leonid meteor shower of 2001, reports emerged of "crackling", "swishing", or "hissing" sounds occurring simultaneously with a meteor flare. These are sometimes called electrophonic sounds.
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