Laser cutters are in a fun place right now. Gone are the days when the cheapest machines were tens of thousands of dollars, and when the “compact” models were roughly the size of a freezer. They’ve ...

SAN FRANCISCO -- The Coit Tower will light up the San Francisco skyline with laser space cannons this weekend, as arts nonprofit Illuminate aims to continue lifting the locals' spirits and energize ...

Laser cutters are fantastic pieces of equipment, and thanks to open-source improvements in recent years, are getting even cheaper to make. It can be as simple as throwing a high-powered laser diode ...

An airborne laser built for the U.S. Missile Defense Agencyfailed to destroy a target missile when a software glitch threw off itsprecision aiming during its latest field test. The anti-missile system ...

LAS VEGAS—During the Cold War, Soviet spies were able to monitor the US Embassy in Moscow by using a radioretroreflector bug—a device powered, like modern RFID tags, by a directed radio signal. But ...