For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from the sun. Since the discovery of more Pluto-sized dwarf planets, that ...

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.

Uranus' accidental discovery 240 years ago greatly enhanced our understanding of the solar system, doubling the size of the ...

The observatory is known for its historical significance, including the discovery of Pluto in 1930 by researcher Clyde Tombaugh. TIME highlighted Lowell's new Marley Foundation Astronomy Discovery ...