Because oxygen seeps (diffuses) out of mats slowly, the timing of sunlight becomes a big deal. Short days mean the sun sets ...

While Earth's slowdown is not noticeable on human timescales, it's enough to work significant changes over eons. One of those ...

A huge reservoir nestling in the heart of the Three Gorges Dam is to blame for the disruptive patterns in Earth's rotation.

Earth is the planet we have the best opportunity to understand in detail—helping us see how other rocky planets behave, even ...

NPR's Ayesha Rascoe talks to John Vidale, professor of earth sciences at the University of Southern California, about new research suggesting the rotation of Earth's inner core may be slowing down.

No, you aren't imagining it. NASA has confirmed that the days are indeed getting shorter, as our planet spins faster than ever before.

Mars is rotating more quickly than it used to, according to data that NASA’s InSight lander collected on the red planet. The now-retired InSight was armed with a suite of instruments, including ...

Early in the planet's history, Earth's rotation may have even been shorter than 10 hours, Konstantin Batygin, a professor of planetary science at Caltech, told Live Science in an email.

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, ...