Union Pacific train cars derailment in Texas town causes ethanol leak, no injuries reported

FAA mandates radar separation for helicopters and planes after deadly DC midair collision

Moderate geomagnetic storm forecast for tonight: What to expect

How common are fireballs streaking across the sky?

Winds, blizzards and triple-digit heat put over half of the US in the path of extreme weather

Former reality TV star Jessie Holmes repeats as champion of the grueling Iditarod sled dog race