I'm not completely sure if this has been posted on any of the forums yet, but nasa announced they found the furthest near earth object ever, they claim it is possibly a tenth planet orbiting, you guessed it, our solar system. Here's the link, im sure we'll know more soon 
http://www.nasa.gov/home/hqnews/2004/mar/HQ_n04040_solar_object.html

http://www.nasa.gov/home/hqnews/2004/mar/HQ_n04040_solar_object.html