Here, Galileo took this crude device ... aberration was a limiting factor in refracting telescopes, and that this could be overcome by making lenses with longer focal length, resulting in monsters ...

Once its rings vanish from sight in March 2025, Saturn will look like a pale yellow sphere through most telescopes.

Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on amateur telescopes. Engineers and astronomers at the University of Utah have ...

The space telescope's image of a odd-looking spiral galaxy is, in reality, two distant galaxies overlapping each other.

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

Here's how an innovative flat lens could solve these problems for satellites and space-based telescopes. Understanding ...

For the first time, a flat telescope lens has been produced that represents colors accurately, offering a way to make less bulky lenses that could be sent into space cheaply. The first telescopes ...