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 ...

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 ...

No longer a planet but not forgotten, Pluto’s colors, captured by NASA almost 10 years ago, continue to dazzle among the collection of colorful celestial objects only seen in the solar system.

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 ...

Pluto, a planet that used to be one of the big nine, might have oceans under its surface. Pluto was thought to be entirely frozen over 800 million years ago but a discovery of a gaseous layer ...

The Pluto-Kuiper Express is currently slated to become the first spacecraft to visit the mysterious world, the smallest and usually farthest planet-like body from the sun. The Planetary Society on ...