Clyde Tombaugh didn't set out to discover Pluto when he sent his sketches of the night sky to Lowell Observatory in Flagstaff ...

"The data from the termination shock encounter will be a treasure trove for space physicists worldwide who are eager to ...

Pluto will mark a birthday of sorts on March 23, 2178. No one is likely to be there to celebrate it, of course. Even if ...

Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Scientists at NASA for the first time have been able to observe the make up of Pluto and other small and icy celestial bodies ...

February 18th has been a significant date throughout history, marking a variety of events that have shaped the world. In a ...

CLEVELAND, Ohio – Akron’s men’s basketball team retired Enrique Freeman’s No. 25 at halftime of the Zips' Tuesday game with ...

An amateur astronomer discovered Pluto 95 years ago today. The former planet will complete an orbit in another 153 years.

Yellowstone, the hit western show starring Kevin Costner, is available to watch for free on Pluto TV this weekend.