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 reflecting ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In 1667, then a young Fellow at ...

This powerful Newtonian reflector telescope has hundreds of 5-star Amazon reviews and is at one of its best-ever prices. When you purchase through links on our site, we may earn an affiliate ...

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 reflecting ...

Diffraction spikes, visible in high-power astronomical images, are an intrinsic optical phenomenon in reflecting telescopes, primarily caused by the diffraction and subsequent interference of incoming ...

I'm often asked to recommend a telescope, especially around the holidays, when gift-giving is on our minds. Today I'll share a few suggestions, but before we talk specifics, let's look at the ...

Before an observatory can plumb the secrets of the cosmos, it must navigate more humbling challenges. By Dennis Overbye Few things in science appear to be as delicate or precarious as the giant ...

As we all feel the squeeze of rising living costs and as budgets get ever tighter it might seem like buying a telescope is out of the question. Fortunately, with a little forethought we can shop ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Reflecting telescope made in the ...