Billions of miles (kilometers) from the Sun, Uranus and Neptune are the most distant planets in our Solar System. Long ...

For decades, Uranus and Neptune have carried the tidy label of “ice giants,” shorthand for worlds built mostly from frozen ...

Uranus and Neptune may not be the icy worlds we’ve long imagined. A new Swiss-led study uses innovative hybrid modeling to reveal that these planets could just as easily be dominated by rock as by ...

New models suggest Uranus and Neptune may hold far more rock than expected, raising questions about how these distant planets formed.

Researchers have uncovered evidence that Uranus and Neptune could be far rockier on the inside than anyone expected.

Neptune retrograde will occur from July 2 until Dec. 7. Read on for a deeper meaning behind the cosmic event NASA In astrology, the planet Neptune is said to oversee our dreams, creativity, illusions, ...

The most elusive planetary aurora in the Solar System has finally been revealed in all its gently glowing glory. Far from the Sun, and Earth, the sky-blue planet Neptune has been captured shimmering ...

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 ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Computer simulations suggest that there is an undiscovered ...

New research by a University of Victoria PhD student is challenging popular theory about how part of our solar system formed. At the meeting of the American Astronomical Society’s Division of ...