Astronomers studying the Kuiper Belt have detected a strange distortion that could point to an unknown planet lurking far ...

Astronomers have launched a new program known as ATREIDES to study a mysterious "desert" in space. But unlike the deserts of the planet Arrakis conquered by Paul Atreides in the "Dune" novels by Frank ...

Add Yahoo as a preferred source to see more of our stories on Google. Artist's illustration of Planet Nine, a hypothetical world that some scientists think lurks undiscovered in the far outer solar ...

"The complexity of the exo-Neptunian landscape provides offers a unique window onto the processes involved in the formation and evolution of planetary systems." When you purchase through links on our ...