EL DORADO, Ark. (KTVE/KARD) — The fourth grade Beta Club students of El Dorado are going the extra mile for Earth Day this year — 2,500 miles, to be exact. That’s the number of shoes the ...

The most complete digital topographic ever made of the Earth was released by NASA Monday. The map, known as a global digital elevation model, was created from images collected by the Japanese ...

The resulting Global Digital Elevation Map covers 99% of the Earth's surface, and will be free to download and use. The Terra satellite, dedicated to Earth monitoring missions, has shed light on ...