Posted on Friday, February 05 2010 @ 21:28 CET by Thomas De Maesschalck
Photos taken by the Hubble Space Telescope reveal dwarf planet Pluto has the most dynamic surface on any object in the Solar System:
The researchers note that Pluto became significantly redder in a two-year period, from 2000 to 2002.
When Hubble pictures taken in 1994 are compared with a new set of images taken in 2002 to 2003, astronomers see evidence that Pluto's northern polar region has become brighter.
Referring to the striking changes on Pluto, Professor Brown commented: "Imagine the Moon changing by that much. We're used to looking at the Moon and it being the same night after night. This thing has changed dramatically in that time.
More info
at BBC News.
