Telescopes are specialist optical instruments that have been around for over 400 years and are useful for many applications including seafaring, military operations and especially stargazing. But not ...

The first telescopes, known as refracting telescopes, were built in the early 17th century by Dutch eyeglass makers. They employed a pair of lenses—one convex fitted at the end of the scope, and one ...

Save this article to read it later. Find this story in your account’s ‘Saved for Later’ section. Here at the Strategist, we like to think of ourselves as crazy (in the good way) about the stuff we buy ...

The winter months are fast approaching the Northern Hemisphere -- meaning longer, darker nights longed for by amateur astronomers. To the beginner, setting out on their first tentative steps to ...

Looking Up is transcribed using a combination of AI speech recognition and human editors. It may contain errors. Please check the corresponding audio before quoting in print. Dean Regas: Edwin Hubble ...

In order to be seen, light from objects needs to reach our eyes. Therefore, objects that are far away don’t reflect enough light back for us to see them. The objective lens of a traditional telescope ...

THE Yerkes Observatory, which has recently been completed and inaugurated, contains in its instrumental equipment the largest refractor in the world, the diameter of the object-glass spanning 40 ...

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 ...

After 400 years, the original telescope design is getting a major upgrade. Part of a DARPA funded project, Lockheed Martin's Segmented Planar Imaging Detector for Electro-optical Reconnaissance ...

GREENVILLE, S.C. (FOX Carolina) - Did you know one of the largest telescopes of its kind in the nation is right here in Greenville? Nestled at the highest point of the Roper Mountain Science Center, ...

Light travels at different speeds based on the medium it passes through. For example, in a vacuum, it travels at 3.0 × 10^8 m/s in a straight line. But when directed towards glass, air, diamond, water ...