Add Yahoo as a preferred source to see more of our stories on Google. The IDF on Wednesday announced that its Iron Beam laser defense system has shot down dozens of aerial threats during the war May ...

Dozens of times over the last decade NASA scientists have launched laser beams at a reflector the size of a paperback novel about 240,000 miles (385,000 kilometers) away from Earth. They announced ...

For the first time ever, scientists received a signal after sending laser beams from Earth to a reflector on NASA's Lunar Reconnaissance Orbiter around the moon. The successful signal was received ...

Israel will fully deploy the Iron Beam on December 30, introducing a laser system designed to intercept drones, rockets, missiles, and mortars at high speed. Defense Ministry research and analysis ...

When the green laser encounters atoms along its path through the crystal, it gives the electrons in those atoms a bit of extra energy. In their high-energy state, those electrons can absorb blue light ...

Physicists at the SLAC National Accelerator Laboratory just created a petawatt laser beam with the highest peak power and current ever. This beam was formed from a bunch of electrons that were ...