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

The first telescopes used lenses, known as refracting telescopes. Small instruments – whether for amateur astronomers starting out or people keen to look at distant mountains or spy on their neighbors ...

Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on ...

(if going by patent filings) of the telescope to finally see Neptune's auroras, and it's thanks to NASA's James Webb Space ...

Well, any of us who has ever looked through a telescope could say the same, for the two principal types in use today were developed by giants: the refractor by Galileo and the reflector by Newton.

It was soon realized that what was to become known as chromatic aberration was a limiting factor in refracting telescopes, and that this could be overcome by making lenses with longer focal length ...

The Newtonian reflecting telescope has been in use for centuries since its invention by Isaac Newton in 1668. Unlike refracting telescopes (whose lenses are very expensive), the Newtonian ...

McKim Observatory still houses many of its original instruments, including a 9.53 inch Clark Refractor telescope, a meridian transit telescope, and a gravity driven chronograph. Missing from the early ...

The Beaverlab Finder TW2 is not a smart telescope, but its design makes it unique. This 82mm/3.2-inch refractor is one of a kind in that a lightweight plastic camera can be attached to it in place ...

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 ...