Filmmaker Adam Nemoy helps celebrate the 90th anniversary of Pluto's discovery this month at the 6th annual 'I Heart Pluto' ...

Is it possible to view Pluto from a backyard telescope? Ethan Spyker Wadsworth, Ohio If I'm being honest, Pluto is difficult for an amateur astronomer to see. A standard 8-inch telescope just won ...

Christy had been imaging Pluto with the USNO's 1.5-meter (4.9-foot) telescope. Because Pluto is so far from the sun — more than 3 billion miles (4.8 million km), on average — it appears as ...

The telescope at the observatory was equipped with ... Eleven-year-old Venetia Burney of England suggested the name Pluto because the dark, distant planet resembled the abode of the Greek god ...

Pluto may have got romantic to capture its largest moon, colliding and engaging in a passionate but icy 10 hour kiss with Charon billions of years ago. When you purchase through links on our site ...

Planet X, also called Planet Nine, is a hypothetical planetary body seven times the mass of Earth lurking behind Pluto. If found, this gassy, icy beast some 155 billion miles away from the sun ...

29,097 people played the daily Crossword recently. Can you solve it faster than others?29,097 people played the daily Crossword recently. Can you solve it faster than others?

Charon is large in size relative to Pluto, and is locked in a tight orbit with the dwarf planet. A new simulation suggests how it ended up there. By Jonathan O’Callaghan Some 4.5 billion years ...

Amanda Kooser covers the quirky side of science and space. Pluto has five moons, but Charon stands out from the rest. Charon is half the size of Pluto, “making it the largest known moon relative ...