An amateur astronomer discovered Pluto 95 years ago today. The former planet will complete an orbit in another 153 years. On February 18, 1930, just two weeks after his 24th birthday, Clyde Tombaugh ...

The Children's Museum of Indianapolis is set to open its newest exhibit, featuring one of the most popular children's shows of the last 20 years. The first-ever "Mickey Mouse Clubhouse" exhibit at the ...

An image of Pluto shared by NASA in 2015. Pluto lost its status as the ninth planet of our solar system more than 13 years ago, but there are still people who consider it to be one. Notable among ...

Pluto, the lovable cartoon character we all grew up with, celebrates his birthday on September 5. Here are some fun facts on the super cute doggy This lovable pet is known for his antics that are ...

Pluto discoverer Clyde Tombaugh could only dream of a spacecraft flying past the small planet he spotted on the edges of the solar system in 1930. Yet the newest views of Pluto from NASA's approaching ...

It's been 18 years since Clyde Tombaugh, Pluto's discoverer, passed away — but on Wednesday the late astronomer got a birthday present that would have made him beam with joy: the closest close-ups ...

Alan Stern encounters Kansas astronomer Clyde Tombaugh’s famous discovery of Pluto every day. Stern is the principal investigator of NASA’s New Horizons mission that launched on Jan. 19 to the small, ...