EPA Sets New Power Plant Emission Standards

St. Johns River Power Park, Jacksonville, Fla. (photo courtesy of Creative Commons).

Agnus Dei Farrant
Executive Producer

Mercury has been shown to harm the nervous systems of children exposed in the womb.

First American In Space Receives Own Stamp

The stamp is the U.S. Postal Service's first that honors an individual astronaut. Image: U.S. Postal Service

Len Ly
Senior Staff Reporter

The historic flight lasted 15 minutes.