NASA’s mission to Pluto revealed a frozen world far stranger than scientists expected. Instead of a dead and inactive dwarf ...
Pluto was downgraded from a planet to a dwarf planet in 2006 by the International Astronomical Union. The main reason for Pluto's demotion is that it's not able to "clear its orbit of debris." Other ...
A new tiny ice world has been discovered beyond Pluto surrounded by a thin atmosphere, scientists revealed.
Two decades ago, the International Astronomical Union—which defines and names celestial bodies—redefined the criteria for ...
Scientists have recently unveiled a remarkable discovery in the outer reaches of our solar system: a space fossil located 4 billion miles past Pluto, covered in unidentified organic molecules. This ...
Add Yahoo as a preferred source to see more of our stories on Google. Guests visting the Lowell Observatory in Flagstaff, Arizona during the I Heart Pluto Festival gaze at celestial objects from the ...