Find out what’s speeding up Earth’s rotation and why it may force timekeepers to delete a second ...

Add Yahoo as a preferred source to see more of our stories on Google. Our solar system is mostly arranged along one plane in space, as in this not-to-scale artist's diagram. NASA/JPL, CC BY If you’ve ...

Melting ice sheets and rising seas are redistributing enough mass across the planet to measurably slow Earth’s rotation, stretching the length of each day at a rate not seen in 3.6 million years. A ...

(CNN) — Deep inside Earth is a solid metal ball that rotates independently of our spinning planet, like a top whirling around inside a bigger top, shrouded in mystery. This inner core has intrigued ...

The Earth is always rotating. Despite some hair-brained theories that the Earth is flat, all you need to see evidence of the Earth's rotation and its roundness is to set up a camera and record the ...

As the polar ice caps melt, the Earth actually slows down, California scientists say. Less ice at the Earth's poles and more water weight spread around to other places are leading to the planet ...

Earth’s gravity has a lot to do with what people think is up and what is down. Things fall down toward the ground, but that direction depends on where you are.

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...