It was 1868, and the United States Naval Observatory (USNO) had a problem on its hands. Despite its importance as the nation’s official timekeeper and prestige as an astronomical research institute, ...

Which refractor telescope is best? Space has intrigued humankind ever since we looked skyward for the first time. While it is difficult to imagine what our ancestors thought of the twinkling lights, ...

Early telescope makers, such as John Dollond, patented and commercially produced achromatic refracting telescopes, significantly improving upon earlier designs by reducing color fringing. Henry Fitz ...

The Astronomical Society of the Palm Beaches has built a machine that penetrates South Florida’s dark sky desert for a peek at celestial spectacles thousands of light years from Earth. Housed at the ...