bast_imret said:Well I can tell you that it's not a dumptruck!
fly said:pluto isnt ice.
fark said:Astronomers begin voting on whether Pluto should still be a planet, also whether Donald Duck should put on some damn pants
Its actually been debated since it was discovered in ~1930...kiwi said:Haven't they been having this debate off and on for quite some time now? I remember hearing a year or so ago that some people thought it should no longer be considered a planet.
No, when they discovered it they thought it was actually a lot larger than it is. It's been heavily debated since the late 90's... when Clyde Tombaugh, it's discoverer died (1997). Until then, there really wasn't much of a fuss about it out of respect to the guy...fly said:Its actually been debated since it was discovered in ~1930...
b_sinning said:Isn't Pluto's semi-erratic orbit one of the reasons they are declassfying it?
Well there is the size thing tooSarcasmo said:As I understand it, it is THE reason.
The newly-accepted definition says a planet must be not only spherical, but also must have cleared away all other objects in its vicinity. Its gravitational force must either have either pulled them in and absorbed them or flung them away. The icy, distant bodies Pluto, Charon, and Xena orbit among thousands of other similar bodies in a region of the solar system beyond Neptune called the Kuiper Belt. Furthermore, Pluto’s orbit overlaps Neptune’s. Ceres circles among a large number of astreroids. In each case, these dwarfs are too small to exert enough gravity to give them more space.