Such gatherings are ideal "showrooms" for commercial as well as home-built telescopes. But now, I'm about to make a suggestion that few prospective telescope buyers, especially those neophytes of ...

That secondary mirror, in turn, bounced the light (and thus the image seen) into a convex eyepiece lens built into the side of the tube. This was the first working reflecting telescope.

The Allen Telescope Array (ATA) is the first radio telescope to be designed from the ground up to be used for SETI searches.Until its construction, all radio SETI efforts were dependent on the ...

The giant observatory will become part of an array of telescopes built by the European Southern Observatory organisation in Chile. Built high in the Andes, these instruments avoid much of the ...

When it comes to an engineering marvel like the James Webb Space Telescope, the technology involved ... observatory that cost $10 billion to build and operates at a temperature of 50 K (−223 ...