// ORBITAL LOGISTICS AND PROPULSION TERM

Comet

A cosmic snowball of ice, dust, and rock that orbits the Sun, developing a glowing coma and a long tail when it gets close to the Sun.

Comet — illustration from Wikipedia
Image via Wikipedia

TECHNICAL DEFINITION

A comet is a celestial body composed of ice, dust, and rocky particles, originating from the Kuiper Belt or Oort Cloud, that develops a visible coma and tail when heated by the Sun's radiation and solar wind.

BACKGROUND

The de Havilland Aircraft Company Limited was a British aviation manufacturer established in late 1920 by Geoffrey de Havilland at Stag Lane Aerodrome Edgware on the outskirts of North London. Operations were later moved to Hatfield in Hertfordshire.

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SYNONYMS & ALIASES

  • Dirty snowball
  • icy body
  • tailed star

USAGE NOTE

Comets provide clues about the early solar system's composition and the delivery of water to Earth.

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