Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute NASA's New Horizons spacecraft conducted the first and only flyby of the Pluto system, culminating at ...

It takes Pluto slightly over 248 Earth years to orbit the sun, which means that on March 23, 2178, one Plutonian year will have elapsed since the dwarf planet was first spotted, on Feb. 18, 1930.

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe. Clyde Tombaugh didn't set out to discover Pluto when he sent his ...

Here's what to know about the short life of what was, for a single human lifetime, the solar system's smallest planet. Pluto was discovered in 1930 by Clyde Tombaugh, an American astronomer at the ...

Many astronomy enthusiasts know of Alan Stern, the Principal Investigator of the New Horizons spacecraft mission that conducted a flyby of the Pluto system in 2015. Stern is an outspoken critic of ...

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 sometimes ...

Pluto, discovered in 1930, was once considered the ninth planet in our solar system. In 2006, the International Astronomical Union reclassified Pluto as a dwarf planet because it doesn't meet all ...

Discovered in 1930 at Lowell Observatory in Flagstaff, Arizona, Pluto was hailed as the ninth planet in our solar system. For decades, it captivated imaginations with its icy surface and distant ...

NASA's New Horizons spacecraft conducted the first and only flyby of the Pluto system, culminating at the closest approach of that distant world in July 2015. Sailing onward, the probe carried out ...

For decades after the first eight planets were barnstormed, orbited, and landed upon by spacecraft from Earth, Pluto remained the only one of the solar system’s major worlds that never received ...