The International Astronomical Union, tasked to oversee the naming of celestial objects and their surface features, has just approved a set of naming themes for features on Pluto along with its five ...

Today is a historic day—one that will bring joy to the hundreds of millions of Pluto lovers around the globe. The International Astronomical Union (IAU), the body that is responsible for naming and ...

Hygiene Elementary students on Wednesday watched as Principal Renee Collier and teacher Maridee Moll, after lots of drum rolls, popped open a Pluto-themed time capsule that was sealed in 2016 as part ...

An image captured by NASA’s New Horizons spacecraft last July 14 shows the edge of Pluto and its atmospheric haze, including what appears to be a light wispy cloud toward the right side of the image. ...

Capping years of intense debate, astronomers resolved Thursday to demote Pluto in a wholesale redefinition of planethood that is being billed as a victory of scientific reasoning over historic and ...