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 ...

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 ...

A blue atmosphere, smooth areas, and youthful mountain ranges - this dwarf planet is full of surprises. When NASA's New Horizons probe flew past Pluto in July 2015, the images it returned astonished ...

SEE ALSO: 4 rad dwarf planets that aren't Pluto "The icy worlds beyond Neptune ... 2015 RR245 is catalogued as the "18th largest" object in the Kuiper belt, according to the Minor Planet Center ...

"It's absurd that dozens of Pluto-size objects should all be planets ... the largest asteroid in a band between Mars and Jupiter, it is now classified as a "dwarf planet." It’s cruel logic ...

New Horizons' biggest surprise was that Pluto shows signs of still being geologically active. Some unseen process or processes are renewing the surface of the dwarf planet. This has been likened ...

A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper Belt, is helping scientists nail down their respective masses, a new study reports. The Kuiper ...

Viewed in this longer context, the previously modern idea of having nine planets, which came about in the 1960s and lasted only until 2006, was a blip on the screen. And if you are still a Pluto ...

Best known for driving demotion of Pluto to dwarf planet, astronomer Mike Brown discusses ... The solar system is in a sense the biggest neighborhood that we have. So, by exploring it, we ...

Ganymede, Jupiter's largest moon and the solar system's largest, is bigger than Mercury and the dwarf planet Pluto, with a diameter of 5,268 kilometers.