Meteorological winter runs from December 1 to February 28, which tends to be a better fit for the coldest time of the year than astronomical winter.

This paved the way for the communication satellites we rely on today for things like broadcasting and global networks.

Earth’s spin is not as steady as it looks. As ice melts and groundwater is pumped from deep aquifers to the surface, the ...

Key Takeaways The images now tell a story that no agency can safely ignore. Our defense posture was built for rocks and ...

The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to ...

Understanding what happens to Antarctica’s ice matters, because as it melts, sea levels rise, affecting lives and economies ...

The Mechanics of Earth's Spin Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 ...

New global stress map reveals areas where the Earth's crust is on the verge of collapse, doubling the data and changing earthquake management ...

Uranus is the only planet in our solar system that rotates sideways. It has an axial tilt of about 98 degrees, which means it appears to roll around the Sun instead of spinning upright like Earth or ...

We don’t feel the earth moving even though it’s spinning on its axis and racing around the Sun because everything around us is moving with it at the same constant speed. The earth rotates once every ...

The discovery of a new celestial object in the Earth's neighborhood has created a buzz online asking whether the planet now has a second moon in its orbit. Any thoughts that Earth is now going to be ...