If the spinning were to stop, the angular momentum of every object on Earth would rip the surface apart, resulting in a really, really bad day. "This is just a thought experiment," said James ...

The Earth is predicted to make its fastest rotations on July 9, July 10, July 22 and August 5, according to a Time and Date ...

The planet’s rotation fluctuates as it travels around the sun, and measurements suggest we’re losing more than a millisecond ...

How is it possible for the ISS to stay in orbit? Learn more about the science behind orbiting Earth and more in this NASA "STEMonstrations" video. Credit: NASA Johnson Space Center ...

Instead of velocity we say, “angular velocity,” which measures how fast an object rotates. Finally, instead of momentum, we say “angular momentum.” Even though the terms are a little ...