Explains how Earths day length could extend to 25 hours over hundreds of millions of years due to lunar tides, and how this ...

Earth’s rotation is slowly slowing, scientists say, meaning days are getting longer, though the change takes millions of ...

For nearly a billion years, Earth’s rotation stopped slowing down. Locked in a rare cosmic balance, the planet’s day remained ...

The internal, infernal machinations of our planet may be way more complex than we suspected. A new, detailed probe of Earth's heart reveals that the rotating inner core doesn't just change in rotation ...

SANTA CRUZ — Xi Zhang, a professor of Earth and planetary science at UC Santa Cruz, has discovered that an exoplanet classed ...

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.

An illustration depicts what the surface of one of the exoplanets orbiting Barnard's Star may look like. The other three planets within the system can also be seen. - International Gemini ...

The classical picture of star and planet formation suggests that a star’s rotational axis and the orbital planes of its planets should be aligned. However, exoplanetary systems have considerable ...

A newly analyzed planetary system has turned up a world orbiting at such a skewed angle that it defies the neat textbook picture of how planets are supposed to form and settle around their stars. The ...

A rare image reveals a giant planet clinging to two stars, helping scientists understand how planets survive in chaotic star ...