Any info on it? I'm doing a project on it, so I need some info, thanks people!

Is that the 10th planet that they think they have found?

I'll have a look for you.

http://www.nasa.gov/vision/universe/solarsystem/planet_like_body.html

http://www.nineplanets.org/sedna.html

http://www.gps.caltech.edu/~mbrown/sedna/ (http://www.gps.caltech.edu/%7Embrown/sedna/)

http://www.google.co.uk/search?hl=en&q=Sedna+&btnG=Search&meta=

hope that helps.

could a mod edit my old post with this, it was after 5 minutes, thanks.

I like Wikipedia, they (almost) always have up-to-date information:

http://en.wikipedia.org/wiki/90377_Sedna