The James Webb Space Telescope has successfully deployed the tripod that holds the observatory’s secondary mirror, in what is a critical milestone for the mission. Webb launched on Christmas Day ...

In another major milestone for the James Webb Space Telescope, a motor-driven tripod unfolded as planned Wednesday, moving a 2.4-foot-wide secondary mirror into position to reflect collected ...

Next month, a 120-ton crane will be brought to the summit to remove the telescope’s larger components, including its 34-foot-diameter primary mirror — although Golwala said that without the ...

The telescope has the world's largest digital camera, which is the size of a small car, weighs 2,800 kg, and boasts a ...

The Giant Magellan Telescope’s adaptive secondary mirrors will be able to reshape the primary mirror surface 2,000 times a second to keep ... JWST has a 6.5-meter mirror. Why we need new telescopes.

On January 5, the telescope completed one of the most crucial deployments, that of its secondary mirror, without which the telescope would be effectively blind. “I was so nervous about that all ...

Vera C. Rubin Observatory's 3.5-meter secondary mirror has been installed on the Simonyi Survey Telescope on Cerro Pachón in Chile. The glass mirror—made by Corning Advanced Optics and polished ...

The raw secondary mirror for the Extremely Large Telescope has been cast; now it will spend a year cooling before it is meticulously ground and polished into a precise shape for the megatelescope.

The secondary mirror (M2) is the first permanent piece of the telescope’s optical system to be installed. After the mirror was built and polished, it was shipped to Chile in 2018 from Rochester ...

The Vera C Rubin observatory, home to the world's most powerful digital camera, promises to transform our understanding of ...

It took about eight years to fabricate JWST’s segmented, 6.5-meter-wide mirror. Casting the Giant Magellan Telescope’s primary mirrors — each nearly 8.5 meters wide — has been ongoing for ...

Vera C. Rubin Observatory's 3.5-meter secondary mirror has been installed on the Simonyi Survey Telescope on Cerro Pachón in Chile. The glass mirror—made by Corning Advanced Optics and polished ...