Mirrors are a critical part of any space telescope, and the James Webb Space Telescope’s mirrors are made of a special element that will enable it to withstand the rigors of space and see farther back ...

University of Arizona Richard F. Caris Mirror Lab staff members placing nearly 20 tons of Ohara E6 low expansion glass into a mold for casting the Giant Magellan Telescope’s seventh primary mirror ...

Through the centuries, the telescope has gone through an incredible evolution to become the tool it is today. In the modern era, these miraculous inventions can be purchased from a variety of stores, ...

This Saturday is National Astronomy Day, the semi-annual event that celebrates the observation of the heavens. Science museums, universities, and astronomy groups have various events to pique public ...

The 18th and final primary mirror segment is installed on what will be the biggest and most powerful space telescope ever launched. The final mirror installation Wednesday at NASA’s Goddard Space ...

Last fall we told you about 3D-printed telescope parts -- except, of course, for the mirror. But that may not be true much longer. New telescope mirror designs from NASA for space-based instruments ...

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 ...