On July 9, 2025, scientists at the International Earth Rotation and Reference Systems Service (IERS) reported that the Earth ...

Scientists reported that observations by the Hubble Space Telescope confirmed it takes Uranus 17 hours, 14 minutes and 52 seconds to complete a full rotation.

For astronomers, determining a planet’s interior rotation rate is challenging and scientists can’t take direct measurements of Uranus.

Analysis of the Hubble imagery, combined with the data collected by Voyager 2, allowed for a more exact calculation of Uranus’ rotation speed.

A day on Uranus just got slightly longer, thanks to more accurate measurements of its rotation period that should help scientists plan missions to probe the gas giant. Figuring out the rotation ...

A new way to measure the length of Uranus’s day could also help determine the rotation rates of other celestial objects—including exoplanets ...

The Hubble Space Telescope has recorded the ice giant's period of rotation with unprecedented accuracy.

A fresh analysis of a decade's worth of Hubble Space Telescope observations shows Uranus takes 17 hours, 14 minutes and 52 seconds to complete a full rotation — 28 seconds longer than the ...

Scientists reported Monday that observations by the Hubble Space Telescope have confirmed it takes Uranus 17 hours, 14 minutes and 52 seconds to complete a full rotation. That’s 28 seconds ...

A day at Uranus just got a little longer. Scientists reported Monday that observations by the Hubble Space Telescope have confirmed it takes Uranus 17 hours, 14 minutes and 52 seconds to complete ...