Until 2015, Pluto, the former ninth planet of the classical solar system, was largely a mystery—a tiny speck 3.6 billion miles from the sun. When NASA's New Horizons spacecraft arrived at the ...

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 ...

WHAT'S IN A NAME? Pluto is also the name of the Greek god of the underworld. It was suggested by many people as a name for Planet X, but the credit was given to an 11-year-old girl from England.

Scientists announced the discovery of a new moon around Pluto today (July 11), bringing the dwarf planet's number of known satellites to five. The newfound Pluto moon was spotted by researchers using ...

Pluto is so far away from Earth that everything we know about it can be written down on a couple of 3 x 5 inch index cards. But Pluto will come into clearer focus in a few years' time, though, as NASA ...