Classical optics, rooted in the laws of reflection and refraction that treat light as rays, has long provided a practical framework for imaging and illumination. By contrast, physical optics delves ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Back in 2018, astronomers examining the ruins of two collided ...

A jet of particles released by two colliding stars appears to be moving seven times faster than the speed of light — but astronomers blame a cosmic illusion known as superluminal motion. When you ...