Detecting radiation is a fundamental necessity for national security, but doing so effectively and at a distance is a tall ...

A new technique pioneered by scientists at the University of Maryland uses lasers to create a “little ball of lightning” than can help detect radiation at least up to 10 meters from the source.

A laser then adds energy to those free electrons, causing them to collide with more air molecules, which in turn knocks more electrons loose. “It's almost like a little lightning ball right where it ...

Is it possible to harness that energy to power entire communities? Here, we explore that question. Lightning produces 10 ...

These cosmic rays produce secondary, high-energy electrons and positrons in the atmosphere that further ionized the air and created pathways in thunderclouds, allowing lightning to follow and ...