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 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 ...