Reflecting telescope made in the 1980s as part of the "Dobsonian revolution" in amateur astronomy. John Dobson began developing this form in 1956. At the time he was living in a monastery in San ...

Note: You can save a further 10% by applying the coupon. Another Newtonian reflector, this telescope is currently discounted by $40. Like some above, it works with the StarSense app and has a ...

A new radio telescope on the top of Germany's Zugspitze mountain will help unravel the secrets of the universe. The project ...

Two key inventions enabled astronomers to overcome the problem of chromatic aberration: the invention of the reflecting telescope described by James Gregory and built in a different form by Isaac ...

A new radio telescope on the top of Germany's Zugspitze mountain will help unravel the secrets of the universe. The project ...

Find the full ripgrep guide here to find out what is possible. Other Once live grep args is available as lua module, load the extension: local telescope = require ...

Historians recognize Ibn al-Haytham, who lived in present-day Iraq between 965 and 1039 A.D., as the first optical scientist.