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

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 ...

Together, the mirrors will function as a single unit, about as wide as an adult blue whale is long, that reflects light into the telescope’s secondary mirrors and, ultimately, its scientific ...

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

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 ...