Over the quarter century I’ve been writing this column, I've been flabbergasted by the advances in telescopes for backyard ...

Reflector telescopes tend to have larger apertures ... You get two types of catadioptrics, the Schmidt-Cassegrain and the Maksutov-Cassegrain. As a general rule, the Maksutov-Cassegrain is better ...

At one extreme stands the individual observer, peering through a telescope or simply ... 18-inch carbon-fiber Schmidt-Cassegrain, Ritchie-Chretien, and Newtonian reflectors plus an array of ...

a 900-ton platform and four-story dome of secondary reflectors hanging over the receiver fell more than 400 feet and crashed into the main dish. No people were hurt in the incident, but the U.S.

NASA's Roman Space Telescope has received its Optical Telescope Assembly, paving the way for its mission to explore the ...

Roughly 400,000 years after the Big Bang, the universe cooled just enough to allow photons to escape from the primordial ...

The radar antenna reflector for the NASA-ISRO Synthetic Aperture Radar (NISAR) mission arrived at the spacecraft integration and test facility of the Indian Space Research Organisation (ISRO ...

All the major elements of NASA’s next flagship space telescope are now under one roof as NASA says its development remains on cost and schedule.