Planets that once lived only in pulp novels and movie concept art are now turning up in real data. Astronomers are not just ...

We rank the best Xbox 360 games of all time. From Halo 3 and Gears of War to Skyrim, Mass Effect 2, and Call of Duty 4, these ...

Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...