A stellar occultation this month gave scientists an opportunity to scrutinize the seventh planet from the Sun.

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

The upshot is that we now know that a day on Uranus takes 17 hours, 14 minutes, and 52 seconds, or 28 seconds longer than the best previous estimate made by NASA’s Voyager 2 during its 1986 flyby.

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

CAPE CANAVERAL, Fla. — 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 ...