Wait, what? Pluto a planet again?

You'd have a better chance of spotting Pluto, in fact (which can't be seen either, from Earth, with the eye alone). Pluto is some 1,500 times fainter than the faintest star visible to the unaided eye, but Pluto outshines the New Horizons spacecraft by

When Pluto was hurled from the pantheon of planets back in 2006, it could simply have slinked away, accepting its new title of “dwarf planet” without a fuss. But thanks to the undying support of its millions of fans—not just schoolchildren, but many

CLEVELAND, Ohio — Plain Dealer sports columnist Terry Pluto talks about the FCC lifting the NFL blackout rule, how Dion Waiters fits in with new Cavs coach David Blatt's system, bright spots for Indians fans to hold on to until next season and who

Here's Hydra! The New Horizons team spotted the tiny moon of Pluto in July, about six months ahead of when they expected to. You can check it out in the images below. The find is exciting in itself, but it.

The IAU decided to classify Pluto and other small, fringe-dwelling bodies as 'dwarf planets', and the new category was soon filled by the likes of Ceres, located in the asteroid belt in between the orbits of Mars and Jupiter; and Eris, Haumea, and