Finally, the Earth moves a little bit beyond one complete revolution, so the stick again points towards the sun for a second local noon. The sidereal day is just a little bit shorter—approximately 23 ...

“Getting that to cross the equator, where the Coriolis force is essentially zero, is kind of impossible because it means you ...

At any given time, about two-thirds of Earth's surface is covered by clouds. Overall, they make the planet much cooler than ...

A cross-section of Earth’s core, showing the ‘donut’ containing more light elements around the equator. Ma and Tkalčić / Science Advances There is also another planetary-scale process at ...

Melting ice is slowing Earth's spin and causing changes to its axis, new studies find. The shifts are causing feedback beneath the surface, impacting the planet's molten core.

So much ice is melting at the Earth's poles that it's affecting the rotation of the planet, scientists say. Its spin is slowing down slightly, causing days to get longer.

New NASA-led research reveals that global warming is altering wind patterns and shrinking Earth's reflective cloud zones.