For centuries, telescopes have relied on curved lenses and mirrors to capture images of the cosmos. While effective, these ...

For hundreds of years, the principle behind the telescope has been as simple as it gets: build a lens or mirror to collect a large amount of light, focus that light onto a detector (like an eye ...

The benefit of gravitational lensing is that it not only bends light but magnifies it, too, just like a telescope lens. That allows scientists to see extremely distant galaxies like the Cosmic ...

His idea is to use the entire planet as a kind of giant lens and place a space telescope at the focal point to snap the images. This telescope—the terrascope—would have the light-gathering ...

A gravitational lens telescope, as envisioned by Claudio Maccone in his 2009 book Deep Space Flight and Communications. Astronomers use several techniques to find exoplanets, including the so ...

The 1.55mm-thick lenses incorporate a thin reflective telescope made of mirrors and filters; when light enters the eye it bounces off the series of mirrors and increases the perceived view of an ...

His telescope had a concave eyepiece aligned with a convex objective lens. One story goes that he got the idea for his design after observing two children in his shop holding up two lenses that ...