The James Webb Space Telescope (JWST) has discovered that a hazy sky over frozen Pluto is helping to cool the dwarf planet's ...

The first observations of Pluto by NASA's James Webb Space Telescope (JWST) reveal dramatic phenomena on its surface, like ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Eighteen years ago today, Pluto lost its planetary status in a vote by International Astronomical Union (IAU) members on the final day of their 2006 general assembly meeting. The word "planet ...

This 2015 NASA image of Pluto combines blue, red and infrared images. In 2006, the International Astronomical Union demoted Pluto to one of dozens of dwarf planets. After its discovery in 1930 ...

We're still doing the same stuff with Pluto that we would, regardless of whether it's called *** planet or dwarf planet. On Aug. 24, 2006, the International Astronomical Union voted to strictly ...

The reason Pluto’s classification was changed was because of the International Astronomical Union, or IAU for short. Many things contributed to Pluto’s new classification. The first thing is ...

Although Seeing in the Dark doesn't directly discuss Pluto, it does celebrate the joy of observing planets. Viewers who watch the show may wonder what happened to Pluto in 2006 and whether any of ...

Long believed to be the ninth planet in our solar system, Pluto's planetary status was downgraded to a dwarf planet by the International Astronomical Union in 2006. However, this reclassification ...