Discover interesting facts about how big earthquakes can get, why earthquakes happen, and why they're so hard to predict.

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

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 ...

On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale ...

A collection of down-to-Earth facts about our planet and its place in the solar system. This collection introduces the Sun as the main source of light and heat on Earth. It explains that the Earth ...

So put your kids in charge of eliminating single-use plastic from an upcoming family vacation, and watch as your little planet protectors ... kids and save-the-Earth sightseers.

But true stewards of the planet inspire people outside the family to keep the Earth clean. Start by helping your kids organize a weekly or monthly Garbage Club. Talk through who to recruit—and ...

Curious Kids is a series for children ... @theconversation.com. Why do some planets have moons and some don’t? – Siddharth, age 6, Texas On Earth, you can look up at night and see the Moon ...

Venus spins clockwise on its axis, opposite to most other planets, causing the sun to rise in the west. Venus is often called Earth's "sister planet" because it is similar in size and composition.