Submission + - Eris confirmed to be more massive then Pluto (hubblesite.org)
tigerhawkvok writes: "Using Hubble data, a Caltech professor and his graduate student observed the orbit of Eris's (formally Xena) moon, and confirmed Eris to both be radially larger and more massive than Pluto. Eris was the body that prompted much of the debate over the definition of a planet.
Check out the Hubblesite press release for more information, or Phil Plait's Bad Astronomy Blog for a quick summary."
Check out the Hubblesite press release for more information, or Phil Plait's Bad Astronomy Blog for a quick summary."