We actually know very little about what's going on inside Uranus and Neptune, causing researchers to propose that these ...

What if our understanding of Uranus and Neptune's compositions have been wrong, specifically regarding their classifications ...

Uranus and Neptune have been called the “ice giants” for decades. But in new research, that nickname might be more a misnomer ...

Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space ...

NASA's Voyager probes are the only spacecraft to reach interstellar space. However, Voyager 1 is going to achieve another ...

It will be a while before you can see it for yourself, however. Halley’s comet was last visible from Earth in 1986, meaning ...

The James Webb Space Telescope's Near-Infrared camera (NIRCam) captured stunning imagery of Neptune. It is the "clearest view ...

NASA unveiled the result of the research that analyzed over 40 years worth of old satellite data to add more into the ninth ...

Did NASA find another Earth? Scientists look to the sky to find a copy of our planet, and some experts think they may have ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, ...

Planet Y has not been directly observed, but its influence is apparent. Researchers studied roughly 50 icy objects beyond Neptune and found unexpected orbital inclinations.