A proposed rule would narrow the definition of harm under the Endangered Species Act and could open the door to more mining, ...

A geomagnetic storm unleashed by the sun on Sunday could create colorful auroral displays over parts of the United States ...

The northern lights were visible farther south than normal Tuesday, April 15, and they'll be visible again for some residents ...

Tuskegee Airman Lt. Frank H. Moody crashed on April 11, 1944. His was one of about 200 military aircraft lost the Great Lakes during World War II.