Uranus may have small, undiscovered moons and there are likely more to be found elsewhere.
Uranus is the seventh planet from the sun and the third-largest planet in the solar system. The blue-green gas giant has the coldest atmosphere of all the planets in the solar system. Uranus is the only planet in the solar system that orbits the sun on its side, and this extreme tilt is responsible for turning the planet's magnetic fields into a jumbled mess. So far only NASA's Voyager 2 spacecraft has studied the planet up close during a flyby in 1986, but researchers are still studying the planet with telescopes on and around Earth.
The rings of Saturn, Neptune and Uranus are composed of pieces of Pluto-like dwarf planets that strayed too close to the giant worlds long ago, a new study suggests.
A new study models what Planet Nine might look like and how detectable it may be — if the hypothesized world does indeed exist.
On Jan. 24, 1986, NASA's robotic Voyager 2 probe zoomed by Uranus, giving humanity its first up-close look at the seventh planet from the sun.
Often overlooked, Uranus, one of the solar system's "ice giants," can prove a challenging, but worthwhile target for amateur astronomers this month.
Witnessing an aurora first-hand is a truly awe-inspiring experience no matter what planet you may be on.
It's officially autumn, and time once again to seek out the two most distant planets of our solar system, Uranus and Neptune.
An illustrated Web comic by the cartoonist Boulet explains his passion for stargazing, and takes readers on an awe-inspiring tour of the cosmic landscapes made visible by science.
NASA began an early feasibility study for missions to the distant, mostly-ignored ice-giants Uranus and Neptune, a senior agency official said here Aug. 24.
NASA's Hubble Space Telescope and the Keck Observatory in Hawaii have helped researchers characterize a Uranus-mass exoplanet that had remained mysterious since its discovery a decade ago.
Do jokes about the name 'Uranus" get in the way of people actually learning about the gas giant planet?
Titania and Miranda offer up great views and places to explore, but both of the moons suffer from extreme cold and very low gravity.
Titania, an airless moon of Uranus, is cold and its day is 84 years long. See what it would be like for astronauts on Titania in this Space.com infographic.
Observers with keen eyes will be able to see two little-spotted planets in the night sky this season.
Uranus is finally having some summer storms, seven years after the planet reached its closest approach to the sun, leaving scientists wondering why the massive storms are so late.