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 ...

An enormous piece of glass-ceramic has been cast for the secondary mirror of the European Southern Observatory's (ESO) Extremely Large Telescope, entering a year-long cooldown and heat-treatment ...

The secondary mirror, measuring about three-quarters of a meter across, was removed last week. Next month, a 120-ton crane will be brought to the summit to remove the telescope’s larger ...

image: The round, gold coated secondary mirror that will fly aboard NASA's James Webb Space Telescope looks like a giant sun in this photo where technicians at NASA were securing it to a platform.

On March 3 rd,a team of engineers at NASA's Goddard Space Flight Center succeededin installing the secondary mirror onto the frame of the future James Webb Space Telescope (JWST). Once operational ...

The game-changing Vera C. Rubin Observatory will collect more astronomical data in its first year than all other telescopes ...

V era 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 ...

On July 24, 2024, a team at the Vera C. Rubin Observatory in Chile installed its 3.4-meter secondary mirror onto the Simonyi Survey Telescope. Its installment brings the facility one step closer ...

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 ...

Note: the eyepiece of a reflector is found on the side of the telescope tube, not on the far end, as is the case with a refractor. This is because a small secondary mirror mounted close to the ...

The primary mirror on the Hubble Space Telescope was created in Canton ... This work continues with the world's largest active secondary mirror system, built for Rubin Observatory," Charles ...