In a ray diagram, a concave lens is drawn as a vertical line with inward facing arrows to indicate the shape of the lens.

Engineers and astronomers at the University of Utah have designed a unique new kind of telescope lens: a flat lens with microscopic etchings to refract light. If the concept can be scaled up ...

However, making telescopes that can peek deep into the cosmos is an incredibly technical and expensive task—but thanks to new research, that could change. Here's how an innovative flat lens ...

A stunning new image from the James Webb Space Telescope (JWST ... interest to astronomers is the nebula's faint, Venn-diagram-like structure — two rings of ejected material shaped by the ...