Pluto has regained its position as the ninth largest body to orbit the …

When scientists first discovered the dwarf planet Eris back in 2005, they claimed that the icy body was actually larger than Pluto. But when Eris' orbit passed in front of a dim star late last year, astronomers got their first chance to take a good hard look at the dwarf planet's actual diameter. And as it turns out,… » 10/28/11 11:40am 10/28/11 11:40am

Ten Science Stories That Changed Our Decade

There is no doubt that science has become more like science fiction in the past decade, with amazing innovations and discoveries that increased our understanding of the universe. We list ten of the biggest science stories from the past decade. » 12/18/09 5:30pm 12/18/09 5:30pm