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

The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking ...

And there are plenty of interesting Earth Day facts to learn! But, first, a little background. Earth Day falls on April 22 ...

In honor of the holiday, we've collected a list of Earth Day facts that just might surprise even the savviest of trivia buffs. For instance, perhaps you may know that Earth Day was founded in 1970 ...

The inner core of Earth may have changed shape in the past 20 years, according to a group of scientists. The inner core is ...

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 ...

Earth's crust is the planet's outermost layer. It is made of solid rock and sits on top of another layer, called the mantle. The mantle flows and stretches like bubble gum, while the crust above ...

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 ...

Brr! But in sunlight near Earth, temperatures can swing to a boiling 250 degrees Fahrenheit. That's why astronauts wear reflective white spacesuits. Unimpeded, light can move at 299,792,458 meters ...

The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball ...

Scientists of course cannot cut into Earth and directly observe its insides. Instead, their knowledge is inferred from the ...