Typically, a planet's magnetic field funnels the material into its atmosphere. But even planets without a field can still ...

When a star comes to the end of its life and dies, it can be an epic and destructive event, throwing out an explosion of heat and light — but it can create stunning new forms as well. A gorgeous new ...

Uranus seemed like a fairly calm, blue-green planet. But new findings from Hubble paint a different picture of Uranus.

The planet’s elusive aurorae are much colder than expected, which is how they evaded detection for so long.

New observations have revealed that we were wrong about the length of a day on Uranus. According to the most precise ...

Aurora lights on Uranus helped NASA’s Hubble Space Telescope measure the planet’s interior rotation rate, changing what astronomers know about how long a day is on the cold and windy world.

A day on Uranus is about half a minute longer than previously thought, according to new research. Nearly 40 years ago, ...

Astronomers have just revealed that a day on Uranus is longer than was previously thought, at 17 hours, 14 minutes and 52 seconds. This is 28 seconds longer than the previous estimate, which was made ...

The Hubble Space Telescope has been measuring Uranus’ interior rotation and determined that a day on the planet is longer than initially thought. According to a French-led ...

An international team of astronomers using the NASA/ESA Hubble Space Telescope have made new measurements of Uranus' interior ...