The Earth is about 42 million feet (12.8 million meters) wide, and even a tall adult's viewpoint is just 6 feet (about 2 meters) above its surface. There is no way our eyes can take in the size of ...
Here’s how it works. A new satellite has mapped Earth's ocean floors in unprecedented detail, a new study reveals. . The first year of measurements from NASA's Surface Water and Ocean Topography ...