Alas, extremely long telescopes proved to be impracticable ... proved unable to grind mirrors with a regular curvature, so the reflector remained largely a curiosity until the mid-18th century ...

thanks to their typically long focal length, but unfortunately, they do have a tendency to suffer from chromatic aberration. Reflector telescopes are well-loved by amateur astronomers and better ...

[Styropyro’s] handheld, DIY laser rifle, or Laser Telescope Blaster as he calls it, works for long distances. His solution lies in some surprising physics: the larger the diameter of the beam ...

Looking to save on a telescope from Sky-Watcher, one of the world's leading optical brands? We've rounded up the best deals to help you upgrade your astronomy gear without breaking the bank.

The Herschel Museum of Astronomy, in Bath, has acquired the Gregorian Reflector telescope on long-term loan. The brass instrument was created between 1738-1768 by James Short, the pre-eminent ...

Explore these orbiting pioneers and learn what they've discovered. 3 min read The Hubble Space Telescope was designed to free astronomers of a limitation that has plagued them since the days of ...

NASA astronaut Sunita Williams has successfully completed her eighth spacewalk, bringing her total extravehicular activity ...