Name That Space Rock
  • The Ridger 2y

    If you don't say how big an asteroid is, saying a meteoroid is smaller than one isn't much help.
  • Fellangel 2y

    You know its an asteroid if you can land an experimental shuttle on it and dispatch a oil rig team to blow it up. Otherwise it's a meteoroid.
  • Wesley Riot 2y

    where does a Metroid fit into this
  • Wesley Riot 2y

    what about Haemorrhoids
  • Christopher Barry 2y

    Is that a narwhal?
  • The Bunnies 2y

    A comet has a coma? A comet IN a coma? A comma? A typo? I'm confused! (I DO love that narwhal)
  • Alessondra Springmann 2y

    The Bunnies A comet sometimes has a coma, usually when it's close to the sun. A coma is cloud of ice and dust particles.
  • Alessondra Springmann 2y

    The Ridger There's no good definition of a meteoroid, but most places suggest they're pieces of rock and dust in space less than a meter (around a yard, or three feet) in diameter. JPL has more on the differences.
  • RobertHughey 2y

    I'm absolutely shocked that there's some nonspecific guidelines for nomenclature on NASA's website somewhere. Usually everything is incredibly cut / dry /clear.

    Maybe I remain bitter because of poor, forsaken Pluto.

    Hmm. I hope I used that word right..."nomenclature"
    it's very very late, and my vocabulary disappears after 1am. :)
  • Alessondra Springmann 2y

    RobertHughey I'm not surprised that there isn't a cut and dry definition; my guess is that the IAU hasn't adopted one yet.
38 faves
Taken on February 15, 2013
  • Show EXIF

Additional info

  • Viewing this photo Public
  • Safety level of this photo Safe
  • S Search
    Photo navigation
    < > Thumbnail navigation
    Z Zoom
    B Back to context