On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

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 ...

When was Pluto discovered? Pluto was discovered in 1930 by Clyde Tombaugh, an American astronomer at the Lowell Observatory ...

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 ...

The annual event celebrates the discovery of the little planet with a big heart and other scientific advances at Flagstaff, ...

On Feb. 18, 1979, snow fell in the Sahara Desert in southern Algeria for the first known time. It fell a second time in 2016 ...

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

Rob Brezsny champions a positive approach to life through horoscopes with weekly wisdom in this Free Will Astrology ...

It was October 2001, and a leaky Lindley Hall roof and Lawrence light pollution had rendered the 1929 telescope — which had been refurbished by Pluto discoverer Clyde Tombaugh — nearly useless.

Today: On Feb. 18, 1930, Clyde Tombaugh discovered Pluto, at that time classified as the ninth planet.