Large New World Discovered Beyond Pluto
http://www.space.com/scienceastronomy/050729_large_object.html
 
Object Larger Than Pluto Discovered, Called 10th Planet
http://www.space.com/scienceastronomy/050729_new_planet.html
 
Caltech Astronomer Finds Solar System's 10th Planet
http://today.reuters.com/news/newsArticle.aspx?type=scienceNews&storyID=2005-07-30T015035Z_01_N29470376_RTRIDST_0_SCIENCE-SPACE-PLANET-DC.XML
 
Astronomers Claim Discovery of 10th Planet
http://news.yahoo.com/s/ap/20050730/ap_on_sc/new_planet;_ylt=AlWwOIZnu_HYPVVQuspaPzSs0NUE;_ylu=X3oDMTA3MzV0MTdmBHNlYwM3NTM-