Fire rainbows, a phenomenon that captivates both the eye and the imagination, are a rare sight in the sky. When these ...

Conventional curved lenses, which direct light by refraction in glass or plastic, are often bulky and heavy, offering only limited control of light waves. Metasurfaces, in contrast, are flat and ...

Scientists have developed an impossibly thin telescope lens that addresses a key astronomical challenge in a new study funded ...

The March 29, 2025, partial solar eclipse will create a crescent sunrise over North America. Here are the best ways to ...

In summary, equilux serves as both a scientific landmark and a prediction of the seasonal shift toward ...

Accounting for ACD in piggyback IOL calculations using the Holladay formula and meridional analysis reduces errors.