for years, the measurements didn't add up - now scientists have just revealed why.

For centuries, astronomers faced the challenge of classifying objects in space based on their appearance. When observing an ...

Climate change is slowing Earth's rotation at record speeds, causing GPS timing errors and navigation delays on your ...

Learn how winds in Saturn's upper atmosphere power a continuous aurora, creating misleading changes in the planet's rotation rate.

The largest survey of exoplanets using an observatory atop Mauna Kea on the Big Island confirms a long-predicted relationship ...

For decades, scientists have been puzzled by a strange observation about Saturn. Depending on how it was measured, the planet seemed to spin at slightly different speeds. This didn’t make sense, ...

In the future, this feature could be used to shed light on chemistry and even the birth of planetary systems.

Scientists announced Monday that Earth is rotating slightly faster than normal, resulting in what is expected to become the second-shortest day ever recorded since precise atomic timekeeping began.

For decades, astronomers have struggled to differentiate giant planets from brown dwarfs, a class of objects more massive ...