Much of what we understand about Uranus comes from data gathered by NASA's Voyager 2 spacecraft. Thirty-eight years ago, this ...

Today, we know of more than 5,000 exoplanets: planets outside our solar system that orbit other stars. While the effort to ...

Experts say they now know even less about a typical day on Uranus, and need a second spacecraft to visit the planet in order to find out more.

They've found that Voyager 2's flyby was a freak event: The spacecraft happened to pass by Uranus during an "extreme" solar storm, effectively ruining any chance Voyager 2 had at capturing an accurate ...

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

Welcome to 55 Cancri e—better known as the planet Janssen—whose extreme orbit is revealed by new research published in Nature Astronomy. An exoplanet (one that orbits a star other than our Sun ...