News Results - comets

  • Comets - Overview | Planets - NASA Solar System Exploration

    solarsystem.nasa.gov/planets/profile.cfm Comets are cosmic snowballs of frozen gases, rock and dust roughly the size of a small town. When a comet's orbit brings it close to the sun, it heats up and spews ...
  • Comets: Facts About The 'Dirty Snowballs' of Space

    www.space.com/53-comets-formation-discovery-and-exploration.html Learn about the composition and orbit of comets, as well as the history of their discovery, famous comets and space missions to analyze them.
  • Comet - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Comet A comet is an icy small Solar System body that, when passing close to the Sun, heats up and begins to outgas, displaying a visible atmosphere or coma, and sometimes ...
    • Comets facts, pictures and information - Nine Planets: Comets

      nineplanets.org/comets.html Unlike the other small bodies in the solar system, comets have been known since antiquity. There are Chinese records of Comet Halley going back to at least 240 BC
    • Asteroids and Comets, Asteroids and Comets Information, Facts ...

      science.nationalgeographic.com/science/space/.../asteroids-comets-article Get information, facts, photos, news, videos, and more about the asteroids and comets in our solar system from National Geographic.
    • Comets | NASA

      www.nasa.gov/comets NASA.gov brings you the latest images, videos and news from America's space agency. Get the latest updates on NASA missions, watch NASA TV live, and learn about our ...
    • Comets - NASA

      nssdc.gsfc.nasa.gov/planetary/planets/cometpage.html General Information. Comet Fact Sheet; Frequently Asked Questions - Comets; Reference Books on Comets; Images and Information on the Comet SL-9 collision with Jupiter