Telescopes are specialist optical instruments that have been around for over 400 years and are useful for many applications including seafaring, military operations and especially stargazing. But not ...

In the last two to three years the world of amateur telescopes has been turned on its head. The advances in technology have ...

The first telescopes, known as refracting telescopes, were built in the early 17th century by Dutch eyeglass makers. They employed a pair of lenses—one convex fitted at the end of the scope, and one ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Reflecting telescope made in the ...

1845 In Ireland, William Parsons builds the Leviathan, a reflecting telescope with a mirror that is 6 feet in diameter. He uses it to discover the spiral structure of the nebula M51. 1908 The Hale ...

For nearly as long as we've walked the Earth, humans have tried to make sense of the stars. Now, three new sky-gazing tools are poised to tell us even more. Each will play a unique role in deciphering ...

Inside the Eisenhower Community Center, up a steep metal ladder and beyond a small latch door, a group of explorers hunkered below the rooftop dome while waiting for their tour to begin. First stop: ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The Hubble Space Telescope is offline. An STS-125 crew ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Galaxy cluster SMACS 0723, known as Webb’s First Deep Field, ...