• Comets are small, icy objects that have very elliptical orbits around the Sun.
  • Comet tails form as the comet flies close to the Sun and the outer layers of ice melt and form a glowing coma.
  • Particles streaming from the Sun push this gas and dust into a long tail.
  • Comets appear for only a short time when they are near the Sun.
  • They seem to disappear as they move back to the outer solar system.
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