For the first time, a flat telescope lens has been produced that represents colors accurately, offering a way to make less ...

For centuries, telescopes have relied oncurved glass lenses to bend light and bring the cosmos into focus. While effective, these traditional lenses come with a major drawback—the more powerful they ...

For centuries, cameras and telescopes have relied on curved glass or plastic lenses to bend light and bring images into focus ...

That's why observatory and space-based telescopes rely on massive, curved mirrors instead to ... capabilities of their flat lens with test images of the sun and moon. "Our demonstration is a ...

Other scientists had speculated that using mirrors rather than lenses might correct this problem, but Newton was the first to put such thoughts into practice. He cast a two-inch metal mirror and ...