The majority of stars in our galaxy are home to planets. The most abundant are the sub-Neptunes, planets between the size of Earth and Neptune. Calculating their density poses a problem for scientists ...

A new computational model suggests that Uranus' and Neptune's cores may be less icy than their "ice giant" nickname suggests.

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

If you look at our Solar System, there’s a sharp divide between the four rocky planets and the large “ice giants” of the outer Solar System, Uranus, and Neptune. The divide isn’t only a matter of ...

How do we know anything about the winds on these remote planets? The main sources of information date back to the close encounters of the Voyager 2 spacecraft with Uranus (in 1986) and Neptune (in ...

A team of astronomers looking into the vast cosmos has located a planet that is the size of Neptune but has a density similar to Earth, and it just happens to be called EPIC212521166 b. The ...