Pluto was discovered in 1930 by American astronomer, Clyde Tombaugh, the Lowell Observatory said. Here's a look at Pluto's history. Pluto was discovered in 1930 by Clyde Tombaugh, an American ...

Here is everything to know about the history of Pluto being discovered in an Arizona observatory. For more information on the biggest astronomical events of 2025, check out our celestial calendar.

Lucky find or not, the discovery of Pluto came at a crucial moment in history, particularly for the U.S. By 1930, the Great ...

We bring up this history because it is directly related to the story of Pluto. In 1846, Neptune, the fourth of the giant planets beyond the asteroid belt, was discovered—thirty times farther ...

An curved arrow pointing right. Last July, NASA's New Horizons spacecraft flew by Pluto. The event was one for the history books. Because Pluto is so far, it took time for the spacecraft to ...

However, a number of astronomers dispute whether Pluto, discovered in 1930, should really be classified as a planet, because it is so dissimilar from the other eight. Instead, they believe it ...

Here are the five most surprising things discovered by the deep-space instrument. After almost a decade in space, the New Horizons probe's close encounter with Pluto lasted just six days as it ...

Tombaugh, of course, is the Kansan who discovered Pluto in 1930. He died in 1997 ... students about this important part of KU astronomy history.” ...

FLAGSTAFF, Az. – Whether Pluto is officially a planet is the least interesting thing about the runt of the solar system, astronomers will tell you 95 years after the discovery of the fascinating ...

A stronomer Percival Lowell founded his Arizona stargazing lab in 1894 to aid in his search for life on Mars. While that quest is still ongoing, the observatory made history as the place where ...

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.

FLAGSTAFF, Az. – Whether Pluto is officially a planet is the least interesting thing about the runt of the solar system, astronomers will tell you 95 years after the discovery of the fascinating and ...