The Mechanics of Earth's Spin Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 ...

If you've felt like summer days are flying by, you're not wrong—at least not scientifically. Experts have observed that Earth's rotation is speeding up, making some days slightly shorter than the ...

The planet Earth is unique. The Earth’s rotation creates the cycle of day and night. However, something surprising scientists have found! Well, according to scientists, the Earth is now rotating ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. The Earth in orbit around the Sun, with its rotational axis shown.

The rotation of stars in galaxies such as our Milky Way is puzzling. The orbital speeds of stars should decrease with their distance from the center of the galaxy, but in fact they all have the same ...