This artist’s concept shows the volatile red dwarf star TRAPPIST-1 and its four most closely orbiting planets, all of which ...

It's been one Neptunian year—or about 165 Earth years—since astronomers first observed the most distant planet from the sun.

Scientists created a form of “super ice” that conducts electricity rather than simply freezing by compressing water under ...

PRINCETON, N.J. (CNN/CNN Newsource/WKRC) — A new planet was possibly discovered beyond the planet Neptune. Researchers from the Institute for Advanced Study's School of Natural Sciences have announced ...

"The complexity of the exo-Neptunian landscape provides offers a unique window onto the processes involved in the formation and evolution of planetary systems." Astronomers have launched a new program ...