The Moon is Earth's only permanent natural satellite. It is one of the largest
natural satellites in ..... Earth and the Moon are nevertheless still considered a
planet–satellite system, r...
What makes a planet a planet? The Moon is so big compared to the Earth --
roughly one-quarter our planet's size -- that occasionally you will hear our syst.
Aug 27, 2013 ... This makes the motion of the Earth-Moon system as it orbits the sun something
like a ... So...why isn't the Moon considered to be a planet?
Nov 13, 2015 ... When is the moon not a moon? If a new proposal for defining planethood is
adopted, the moon could be considered a planet in its own right.
Feb 8, 2005 ... Moons circle planets, and planets circle stars. Now, astronomers have learned
that planets may also circle celestial bodies almost as small as ...
The moon is not a planet because, by definition, a planet is a "spherical ball of
rock or gas that orbits a star," according to About.com. While the moon is a ...
Dec 23, 2011 ... Can our moon qualify as a planet? With regard or without regard to the exact
definition of the planet, can the moon be considered as planet as ...
May 6, 2009 ... i would like to know if the moon is a planet since we landed on it. ... surface of the
Earth, it would indeed be considered an independent planet.
Aug 17, 2006 ... If astronomers approve a newly proposed planet definition next week, things
could get really strange.
May 20, 2016 ... Today, either definition of "Blue Moon" is considered valid. As Texas astronomer
Donald W. Olson wrote in a 2006 column for the magazine, ...