A rainbow reveals with colors what otherwise remains hidden: light is "refracted" by transparent matter, in this case water ...

A tiny, first-of-its-kind, nanoscale demonstration shows how we could one day send a spacecraft to another star, within a ...

A striking macro photograph shows a 30-meter pine forest perfectly reflected inside a single raindrop, demonstrating the optical power of water as a natural convex lens. The droplet refracts and ...

Researchers have captured the first real-world evidence of tiny electrical flashes glowing from treetops during thunderstorms ...