As climate change has led to more severe weather, wildfires, storms and more, many people are thinking about how to save what ...

Highlighting 10 major astronomical milestones of the past century in celebration of the Royal Greenwich Observatory’s 350th ...

Clyde Tombaugh is shown on his family farm in Kansas with a telescope he built himself; shortly after this photo was taken, he went to work at Lowell Observatory in Arizona.

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

This place just made TIME's list of World's Greatest Places of 2025 and Newsweek's 10 best science museums in the U.S. Here's how you can visit.

An ounce of Clyde Tombaugh’s cremated remains are aboard NASA’s New Horizons spacecraft, now on the final leg of its 10-year, 3-billion-mile space odyssey to Pluto. By late June, we’ll be ...

On February 18, 1930, just two weeks after his 24th birthday, Clyde Tombaugh made a groundbreaking discovery while reviewing photographs on glass plates taken with the 13-inch telescope at the ...

Clyde Tombaugh, a 24 year old student and the discoverer of the planet Pluto, looks over a Newtonian reflecting telescope he built in 1928. Bettmann Archive.

Clyde Tombaugh didn't set out to discover Pluto when he sent his sketches of the night sky to Lowell Observatory in Flagstaff, Arizona in 1929. More than anything, ...

Pluto was discovered in 1930 by Clyde Tombaugh, an American astronomer at the Lowell Observatory in Flagstaff, Arizona. Cold, dark and distant, it was named after the Roman god of the underworld .