Premium telescope mirror manufacturing involves a multi-stage process beginning with grinding a mirror blank to a precise parabolic curve using grit and water, followed by polishing and figuring to ...

Mike Every knows about grinding glass—and he doesn’t like it. The second-year physics major from Saugerties, N.Y., is an amateur telescope maker with an idea for producing lightweight mirrors out of ...

Giant Magellan Telescope is easily the most ambitious terrestrial astronomy program humanity’s ever devised. It has—quite literally—been built from the ground up by leveraging a brilliant, unique ...

Why build a telescope? YOLO, as the kids say. Having decided that, one must decide what type of far-seer one will construct. For his 10″ reflector, [Carl Anderson] once again said “Yolo”— this time ...

A few months after the end of World War II, on Dec. 3, 1945, workers at the Caltech Optical Shop resumed grinding work on the mirror of a 200-inch Palomar Observatory telescope. Work had been halted ...

TUCSON, Ariz. — An enormous telescope that could help unlock many of the mysteries of the cosmos is really starting to come together. The third of the seven primary mirrors for the Giant Magellan ...