These images of lasers crossing the sky immediately bring to mind the space battles of Star Wars. Yet this scene is very real ...

Thanks to decades of Hollywood influence, when we think of lasers we typically think of laser beams. But this conception is actually quite misguided, as lasers need very specific circumstances in ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. The USS Portland test-fires a laser weapon. The photo captured infrared light to make the beam visible. Staff Sgt. Donald ...