1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Your Definition Of An Earth-Like Planet?

  1. Mar 26, 2005 #1
    Would it be just a terrestrial planet with a similar amount of water and oxygen as Earth? and of course similar distance from the sun or would it have to really resemble Earth?

    The former one I dont think would be all that rare but the latter one would really really be rare, exceedingly rare.
  2. jcsd
  3. Mar 26, 2005 #2
    What is the current consensus on Earth-like planets now?

    Abundant? common? alot? some? fraction? rare?
  4. Mar 26, 2005 #3
    Huh, thats something to think about. Terrestrial means of or realting to or composed of land as well as biology; living or growing on land; not aquadic. So it might not be a terrestrial plant it if just has water and oxygen the way Earth does. It would need to have some form of life on it to be considered a terrestrial. Anything that moved there would be extraterrestrial since it did not originate on the plant.

    Humans are terrestrials to Earth. However there are some humans I'm not so sure about.:wink:
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?