An asteroid capable of flattening a mid-sized city could potentially collide with Earth eight years from now, as its orbit ...

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

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 ...

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

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 ...

University of Iowa researchers found in a new study that images of Earth that kindle "blue marble awe" could create more favorable views of renewable energy and the environment.

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

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 ...