The Giant Magellan Telescope begins the four-year process to fabricate and polish its seventh and final primary mirror, the last required to complete the telescope’s 368 square meter light collecting ...

The University of Arizona Steward Observatory Mirror Lab’s casting of the first mirror for the Giant Magellan Telescope (GMT) “appears to be essentially perfect,” UA Steward Observatory Director Peter ...

GREENBELT, Md. – Scientists working at NASA’s Goddard Space Flight Center in Greenbelt, Md., have concocted an innovative recipe for giant telescope mirrors on the Moon. To make a mirror that dwarfs ...

Under the east grandstands of Arizona Stadium, University of Arizona scientists have been working for nearly 20 years to make huge mirrors for the world’s most powerful optical telescope. And though ...

'It could make lightweight mirrors that are 15 or 20 meters in diameter a reality.' When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A scientist ...

Among the many experiments that crewmembers on the all-private Ax-1 mission will take part in during their one-week stay on the International Space Station is one that could help NASA build larger ...

Researchers have developed a new way to use femtosecond laser pulses to fabricate the high-precision ultrathin mirrors required for high-performance x-ray telescopes. The technique could help improve ...

The second mirror for the Giant Magellan Telescope was cast in the Steward Observatory Mirror Laboratory on Saturday. The Giant Magellan Telescope, which began its design phase for the mirrors in 2005 ...

NASA opened a golden eye on the cosmos Saturday. The James Webb Space Telescope, the largest and most complex of its kind, successfully completed its final deployment stage by opening its 21-foot gold ...

The James Webb Space Telescope is not just a remarkable feat of engineering; it’s a beautiful one too. Take its 18 hexagonal mirrors made from gold-plated beryllium, which inspired YouTube’s Cellar ...