Add Yahoo as a preferred source to see more of our stories on Google. Study suggests moons orbiting rogue planets could host liquid oceans for billions of years using tidal heating and hydrogen ...

Aren’t the summer days supposed to be longer and the winter days shorter? Since when have things gone in reverse for the summertime? Since now, maybe? Starting today? Okay, here’s what’s going on.

Time is out of joint on Venus. The planet’s thick air, which spins much faster than the solid globe, may push against the flanks of mountains and change Venus’ rotation rate. Computer simulations show ...

Though we sum up a day as 24 hours and a year as 365 days, Earth's rotational and orbital speeds aren't exactly consistent. Instead, both fluctuate, swayed by atmospheric drag, tidal forces, changes ...

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.

The presence of life might influence how fast a planet spins, releasing gases such as oxygen that can crank up how quickly a world turns, a new study finds. Earth currently takes about 24 hours to ...

A screenshot of James’s animation “Planets and dwarf planets to scale in size, rotation speed & axial tilt in distance order from Sun”. Credit must be given to the creator. Only noncommercial uses of ...

The Earth is predicted to increase its rotation speed in July and August, once again bucking the trend of a slower rotation over time. Though there are clear reasons for the increased rotational speed ...

The closest planet to the Sun, Mercury, is known for its speed. The second planet from the Sun, Venus, could very well be known as its exact opposite. It takes this burning hot planet 243 Earth days ...