Eris was discovered by the team of Mike Brown , Chad Trujillo , and David Rabinowitz on January 5 , 2005 , from images taken on October 21 , 2003 .
Eris was discovered by Michael E. Brown , Chad Trujillo and David Rabinowitz on January 5 , 2005 , when they were having a close look at some images of the outer Solar System taken in 2003 .