I was reading this morning about Eris, the infamous object that caused all manner of trouble for Pluto's status as a “planet.” I thought Eris was a Kuiper Belt Object but apparently it's a trans-Neptunian scattered disk object. Who'd have thought.
The solar system refuses to be simple. I like this diagram though and these linked-to Wikipedia entries are nice.
Oh, and I guess we're now calling Eris a dwarf planet. (Where now is defined as 2006).
“It's headed toward that trans-neptunian scattered disk object.”
“That's no trans-neptunian scattered disk object. That's a space station!”
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