The laser that transmits between NASA's Psyche spacecraft and Earth-based observatories for the Deep Space Optical ...

The petition calls on the government to investigate resources available to the Royal Australian Air Force or the Australian ...

The technique works because the green laser (wavelength 532 nanometers) changes the way the crystal responds to some other ...

With the help of a ruby cube and two laser beams, researchers made one ray of light cast a shadow when illuminated by the ...

This could enable new tech for controlling light with light, opening doors to advanced fabrication, imaging, and illumination ...

Can light itself cast a shadow? It may sound like a philosophical riddle, but researchers have found that under certain ...

Shadows are a natural consequence of opaque walls in an illuminated Universe. Light shines; photons travel until they hit an ...