Mars’ rotation is speeding up slightly, but enough for scientists to notice. A new study suggests the cause could be a ...

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

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

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 ...

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

The length of a day is not immutable. Factors ranging from the gravitational pull of the Moon to complex movements within the ...

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.

Somewhere deep below Saturn s cloud tops, the planet rotates at a constant speed. Determining this interior period of rotation has proven extremely complicated. Now, with new Cassini results, a team ...

Images from the Akatsuki spacecraft unveil what keeps Venus’s atmosphere rotating much faster than the planet itself. An international research team led by Takeshi Horinouchi of Hokkaido University ...

Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known ...