This gravity disparity is largely due to that equatorial bulge creating non-uniform distances from points on the planet's surface to center of the Earth, and to the fact that the Earth spins.

Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...

Sound as we know it does not exist in space. That’s because, on Earth, sound mainly travels to our ears via vibrating air molecules. Because space is a vacuum, meaning there is no matter at all ...

Earth: The Most Fascinating Planet in the Universe? Even though we live on this planet, there’s still so much we don’t know!

In honor of Earth Day, the Giraffe Blog has put together 50 awesome facts about space, the atmosphere, the sea, and what's under the earth. It's an easy reminder that our Blue Marble is an ...

This list of family Earth Day activities will inspire your family to come together and do something positive for our Planet Earth ... seed bombs with your kids is a fun and hands-on way to ...

Patrick holds a master's degree in international journalism from Cardiff University in the U.K. More about planet earth Greenland's ice sheet — the second biggest in the world — is cracking ...

When it is summer in the Northern Hemisphere, the Earth is not closer to the sun. In fact, it's quite the opposite: The planet is at it's farthest point from the sun during the summer. It is ...