A polar vortex collapse is set to send the mercury plunging as "extreme conditions" sweep across the US and Canada. The meteorological switch-up is set to develop by the middle of the month and will ...

Zack Daniell clears snow from his car along Jones Street in Hollidaysburg on Monday afternoon. Mirror photo by Patrick Waksmunski ANNAPOLIS, Md. — A huge swath of the U.S. was blasted with ice, snow ...

The high-energy radiation that carries orbit angular momentum has become an extremely important tool to investigate the angular momentum-related physics in the microworld. But the generation and ...

The high energy radiation that carry the orbit angular momentum has become an extremely important tool to investigate the angular momentum related physics in microworld. But the generation and ...