Contrary to claims that 3I/ATLAS is no longer from Earth, space experts claim that the Manhattan-sized comet can now be ...

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 ...

The diffraction spikes so familiar to us in space images are an intrinsic property of the telescope. Reflecting telescopes have two mirrors: a large primary and a smaller secondary. Light hits the ...

This Celestron Astromaster 130EQ is seriously discounted for Prime Day, perfect for moongazing or viewing this month's stunning Orionid meteor shower.

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 ...

Choosing the best telescope for the money depends to a large extent on what you hope to see. If you want to scan distant nebulas, you can pay $1,000 and up, and it will still be good value. If you’re ...

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, ...