For decades, Uranus and Neptune have been filed neatly into the “ice giant” drawer, shorthand for worlds built mostly from ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of Ask a Spaceman and Space Radio, and author of How to Die in Space. He contributed this article to ...

Billions of miles (kilometers) from the Sun, Uranus and Neptune are the most distant planets in our Solar System. Long cataloged as simple "ice giants," these planets might hold a major surprise.

Uranus’s largest moons, Titania and Oberon, may be hiding buried oceans. Surface temperatures averaging around -200°C mean the water-rich worlds are covered in ice, but radioactive elements deep ...

Uranus is a strange world, knocked on its side and with a lopsided magnetic field. Its moons may be even stranger. Earlier this year, the U.S. National Academies of Sciences, Engineering and Medicine ...