The Earth is constantly changing in natural ways, but most of those changes are very slow. Humans are speeding up other changes with global warming.

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

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 ...

That complexity could mean bigger fireworks ahead. With the sunspot now rotating to face Earth, it could pose a threat for stronger space weather events in the coming days. M-class flares, like those ...

Shorter days happen from time to time. They tend to occur during the summer, when Earth spins faster than other times of the year, Agnew said. But there’s also added boosts on these days from the moon ...

Most people think a day on Earth is just the time it takes for the planet to make one full rotation on its axis, but that’s ...

Venus, shrouded in mystery, stands out with its toxic atmosphere and retrograde rotation, spinning in the opposite direction ...

July 9 was predicted to have a shorter "length of day" than usual due to an increase in Earth's rotation speed. See which ...

July 9 was unusually short thanks to changes in how fast the Earth is spinning. But two other days this summer are expected to be even shorter.

On Earth, water is so intertwined with life that our search for life on other worlds is essentially a search for water. When ...

Discover why Earth’s rotation is accelerating, how lunar gravity and climate changes play a role, and what it means for timekeeping.

As Earth spins faster than it has in decades, atomic clocks are catching the difference, and shorter days are on the horizon.