Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being a water world, the only one in ...
We observe our planet's oceans, land, ice, and atmosphere, and measure how a change in one drives change in others. We develop new ways to observe and study ...
Explore worldwide satellite imagery and 3D buildings and terrain for hundreds of cities. Zoom to your house or anywhere else, then dive in for a 360° ...
With an equatorial radius of 6,378 km (3,963 miles), Earth is the largest of the four inner, terrestrial (rocky) planets, but it is considerably smaller than ...
With a radius of 3,959 miles, Earth is the fifth largest planet in our solar system, and it's the only one known for sure to have liquid water on its surface.