An international team of astronomers using the NASA/ESA Hubble Space Telescope have made new measurements of Uranus' interior rotation rate with a novel technique, achieving a level of accuracy 1,000 ...

Astronomers using NASA’s Hubble Space Telescope have measured the rotation rate of an extreme exoplanet by observing the varied brightness in its atmosphere. This is the first measurement of the ...

Venus' bizarre and extraordinarily slow retrograde rotation on its axis has long puzzled planetary scientists. But in a new ...

Using the Keck Observatory, astronomers measured the spins of dozens of giant planets and brown dwarfs orbiting distant stars ...

For decades, Saturn has been playing a strange trick on scientists. Depending on how they measure it, the giant planet seemed to rotate at different speeds, which should never be the case for a solid ...

For centuries, astronomers faced the challenge of classifying objects in space based on their appearance. When observing an object that is orbiting a star at a distance, they would often assume it ...