For most of us who are not astronomers, the image that comes to mind when describing a reflecting telescope is of a huge instrument in its own domed-roof building on a mountain top. But a ...

Parabolic reflectors for solar applications are nice stuff, and making your own is a great project in itself. One of the easiest ways we have seen is that of [GREENPOWERSCIENCE], who uses nothing more ...

Optical Surfaces Ltd. has announced that it has delivered, to the Big Bear Solar Observatory (BBSO) located in Big Bear Lake, California, 3 high precision off-axis parabolic mirrors that will form key ...

Over the years of writing this column and putting on astronomy and stargazing presentations, I’ve received inquiries from many nice folks about purchasing a telescope for themselves or that special ...

Telescopes gather and focus light using precisely-shaped mirrors and lenses (or a combination of both). The larger the telescope’s main mirror or lens, the more light is gathered and the more detail ...

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 ...

Technicians on Saturday are set to cast 20 tons of glass for the third of seven ultra-precise primary mirrors that will make up the 72-foot Giant Magellan Telescope, scheduled for completion in ...

Off-axis paraboloid reflector is a special optical element, its main function is to focus the incident light to a certain distance from the optical axis. The working principle is based on the ...

Today’s 8-meter class, optical telescope mirrors are such expensive glass behemoths that when actually moved to their mountaintop vistas, they frequently arrive with helicopter escorts. Local ...

Throughout the year, especially around this time, I receive many emails about purchasing a telescope, either for oneself or that special someone. Every year, I try to provide a telescope buying guide ...

Astronomers must brave a 10-hour drive into the Himalayas to get there. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The world's largest ...

Refractor to reflector, Schmidt-Cassegrain to Maksutov-Cassegrain - this is everything you need to know about the different types of telescopes. When you purchase through links on our site, we may ...