The newcomer replacing Pluto presently goes by "Planet Nine ... A new observatory is coming online that should give ...

When does Pluto leave Capricorn? The dark dwarf will remain in the sign of the sea goat until Nov. 19, when it will enter ...

Pluto may have got romantic to capture its largest moon, colliding and engaging in a passionate but icy 10 hour kiss with ...

What does Pluto — not the dog, but the non-Planet — have in common with the Vikram lunar lander launched by India? Both were found by making very tiny comparisons to photographs. You’d think ...

There are regions in Pluto where huge ice structures exist. Scientists finally think they know how they are formed. Scientists have solved one of Pluto's most puzzling mysteries. In 2015 ...

An curved arrow pointing right. NASA's New Horizons spacecraft took us to Pluto for the first time in July 2015. Scientists are astonished by the incredible features they've observed on the dwarf ...