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 ...

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 ...

One of the most remarkable discoveries made by astronomers in recent years is the identification of an extremely strong "mega ...

In a lab at Osaka University, physicist Yoshiki Nakata and his colleagues fired a pulsed laser through a stack of three ...

A NASA spacecraft has beamed a near-infrared laser nearly 10 million miles into space breaking new ground for the agency. The laser, which is encoded with test data, was fired from NASA’s Psyche ...

(Inside Science) — In long distance space travel, traditional rockets would eventually run out of fuel. There is an alternative: Since as early as the 19 th century, scientists have dreamed of ...

For the experiment, a high-power green laser was directed through ruby cube and illuminated with a blue laser from the side. The green laser increases the optical absorption of the blue illuminating ...