A new study from MIT suggests that the light from a laser could spark the interest from aliens if they exist. The powerful laser would be focused through a telescope aimed toward space. The study's ...

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 ...

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 ...