Information about Uranus is limited. What we know is that the planet is composed mainly of water and ammonia ice, its diameter is about 51,000 kilometers, about four times that of the Earth, and its ...

Researchers found the south polar region darkened in winter shadow, while the north polar region brightened as summer came.

“The materials in my computer simulations had formed ... it is “primarily about the interiors and the magnetic fields of Uranus and Neptune, not about their atmospheres,” Militzer told ...

A rare alignment with a distant star gave NASA an unprecedented view of Uranus’s atmosphere, rings and mysterious heat.

This means Uranus’s material may have been blown away, and had a temporary distorted magnetic field. The new findings suggest that the planet and its moons could be geologically active after ...

Getting a probe to the icy giant planets takes some time—a journey to Uranus could take as long as 13 years, even with a ...

Planetary scientists have long suspected that a giant object knocked Uranus over. If so, the impact may have dredged up hot material from the interior, Irwin says, causing Uranus to lose much of ...