This winter, with record snow in New Orleans and drought and destructive wildfires in Southern California, has not been normal.

Skygazers in certain US states can look forward to a spectacular display of the northern lights on Valentine's Day, thanks to ...

As the Earth is buffeted by a stream escaping from a hole in the sun, those in the northernmost states may be in for a treat.

Imagine gazing up at the night sky this Valentine's Day and witnessing a celestial dance of colors. The Northern Lights are ...

Quakes recorded for the first time inside Greenland's biggest frozen river, the Northeast Greenland Ice Stream, suggest this ...