Unistellar's most expert smart telescope, the eVscope 2, is now 20% off in this massive early Black Friday sale.

The original instrument to occupy the 25-foot diameter dome was the 10.5-inch Bausch refracting telescope (f/15.5) installed in the brand new observatory in 1953. Bausch & Lomb Company gave the ...

The problem in using a normal solar filter with a reflector is that, because the telescope’s secondary mirror and support are at the front end of the telescope, they interfere with the light and ...

The history of Pluto exploration features a wide range of observational equipment, from complex to quite basic. The New Horizons spacecraft, for instance, features a suite of modern instruments that ...