In late August 2006, new discoveries upended a traditional, comfortable way of viewing our solar system: Scientists decided Pluto wasn’t a planet after all. Some space nerds like to mourn Pluto’s loss ...

Hundreds of people who love the little planet that was dissed, gather every year in the Arizona town where Pluto was ...

COLUMBUS, Ga. (WRBL) – Each year on Feb. 18, a whole day is dedicated to the former planet Pluto. Pluto was once the ninth planet in the solar system, but striped of that title back in 2006. Now ...

NASA's New Horizons spacecraft witnessed and photographed Pluto's rotation during a day in the life of the dwarf planet and its largest moon, Charon. Freelance writer Amanda C. Kooser covers gadgets ...

It would be understandable if you stopped thinking as much about Pluto after it was “demoted” from being considered one of ...

On Aug. 24, 2006, the International Astronomical Union voted to strictly define a planet, which ultimately downgraded Pluto from the ninth planet from the sun to a dwarf planet — causing controversy ...

Pluto is an icy dwarf planet that usually lies beyond the orbit of Neptune in the Kuiper Belt. The dwarf planet is smaller than Earth's Moon, with red snow-capped mountains as tall as the Rockies.

Pluto will complete its first orbit since 1930 in 2178, a historic 248-year space journey that spans generations of humans.

CAPE CANAVERAL, Fla. — NASA’s newest Pluto pictures depict an entire day on the dwarf planet. The space agency released a series of 10 close-ups of the frosty, faraway world Friday, representing one ...

More than 11,000 people have signed an online petition to honor NASA's mission to Pluto and other denizens of the solar system's icy rim with a commemorative U.S. postage stamp — which is a fine way ...