On August 24, 2006, in Prague, members of the International Astronomical Union gathered for the final day of their General ...

Forbes contributors publish independent expert analyses and insights. Amanda Kooser covers the quirky side of science and space. Pluto has five moons, but Charon stands out from the rest. Charon is ...

Add Yahoo as a preferred source to see more of our stories on Google. In 2006, we learned that Pluto had been lying to us for more than seventy years-it wasn't a planet after all, but a dwarf planet.

For 76 years, Pluto was our ninth, and farthest planet in the solar system. Today, it's still one of the farthest objects in our solar neighborhood, but it now goes by another title: dwarf planet. In ...

Pluto may be small, but it is proving to be big on surprises. With NASA’s New Horizons spacecraft now speeding toward it, our understanding of the dwarf planet should transform even further. “We’ve ...