Add Yahoo as a preferred source to see more of our stories on Google. In a discovery that challenges conventional optics, scientists have managed to make a laser beam cast its own shadow—a feat ...

A Russian FPV drone was destroyed after an encounter with a weird new Ukrainian weapon. Is this a high-powered laser or ...

Researchers have found that under certain conditions, a laser beam can act like an opaque object and cast a shadow, opening new possibilities for technologies that could use a laser beam to control ...

The search for extraterrestrial life isn't limited to robots digging around in the giant sandbox we call Mars. In fact, scientists involved in SETI — the search for extraterrestrial intelligence — ...