Scramjet test successful

The Freeflight Atmospheric Scramjet Test Technique, or FASTT, is the first liquid fuel-powered scramjet to fly, says the U.S. Office of Naval Research.

Mohave power plant set to close

A coal-fired power plant that emitted vast quantities of air pollution that clouded views of the Grand Canyon will close at year's end.

Caviar demand threatens U.S. sturgeon

A shortage of the prized beluga caviar from the Caspian Sea has increased sales for caviar from the sturgeon of the Mississippi and Missouri rivers.