Many people hold Pluto close in their hearts and refuse to abandon the assertion that it is a planet, although science ...

Astronomers recently detected new features in its high-altitude haze - revealing more than previously known. Once thought to be a frozen, featureless world, Pluto was found to have icy plains and ...

Planet or Plastic? is National Geographic’s multiyear effort to raise awareness about the global plastic trash crisis. Come to this page often to learn more, and find out what you can do to ...