What was discovered in Flagstaff, Arizona, and killed off in Prague? If you answered "Pluto's planethood," your grasp of the ...

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 ...

Astronomers have announced the discovery of a new dwarf planet in our solar system, named 2017 OF201. Located far beyond ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

Following a multimillion-dollar expansion program in recent times, sudden harsh science cuts are challenging America’s ...

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

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show opening to the ...

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show that opened to ...

In the cold, distant reaches of the Solar System, far beyond Pluto, astronomers have just identified what could be a new ...

Pluto TV will release a spine-tingling Summer of Horror, featuring a lineup of cult classic and niche horror content— all ...