NASA's 10th Planet

Summary:

Discovered in 2003

NASA's 10th Planet

Laura (guest) 05 May 2010 18:30

What planet is this? And could this be what everyone one is referring to as Nibiru or Planet X? I found this info on NASA's website.

Re: NASA's 10th Planet

Astrogeek 05 May 2010 19:56

That would be the Kupier Belt Object trans-neptunian object known as Eris (the Goddess of Discord), which was informally named Xena by Mike Brown when it was first discovered. It caused the 'demotion' of Pluto, because it is larger than Pluto.

_{Edit: Fixed designation… Eris is beyond the Kupier Belt}

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"Do you ever think about things you do think about?" - Henry Drummond to Matthew Harrison Brady in Inherit the Wind

Last edited on 05 May 2010 20:00 by Astrogeek Show more

Re: NASA's 10th Planet

Astrogeek 05 May 2010 19:57

Oh, and just to clarify… Eris is not "Planet X"… it never crosses the orbit of Neptune, and therefore never, ever, approaches the inner solar system.

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"Do you ever think about things you do think about?" - Henry Drummond to Matthew Harrison Brady in Inherit the Wind