The post shows a green laser beam projected over a body of water. It also includes a diagram showing how the distance between a straight laser beam and the water below should increase as the ...

University of Michigan scientists say the most powerful laser ever built, called ZEUS, just achieved two petawatts of power.

Can light itself cast a shadow? It may sound like a philosophical riddle, but researchers have found that under certain conditions, a laser beam can act like an opaque object and cast a shadow.

Israel’s in-development high-powered laser interception system, dubbed Iron Beam, is expected to become operational next year, the Defense Ministry said Monday. “The first capability of the gr ...