Today’s 8-meter class, optical telescope mirrors are such expensive glass behemoths that when actually moved to their mountaintop vistas, they frequently arrive with helicopter escorts. Local ...

At 8,040 feet above sea level (2,450 meters) in Uttarakhand, India, lies a prime site for astronomical observations — Devasthal, 31 (52 kilometers) miles east of the resort town Nainital. Surrounded ...

India’s first liquid mirror telescope is up and running. It’s the first and largest liquid mercury telescope to be built at a high altitude, and if that isn’t impressive enough, it is also the first ...

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In May 2022, the James Webb Space Telescope (JWST) encountered a problem. The giant observatory, perched 1 million miles from Earth, has a honeycomb-like configuration of mirror panels to see the ...

A backside view of the International Liquid Mirror Telescope mirror (rotating over the air bearing, which is covered with a plexiglass box on the base) with yellow safety pillars. The mercury transfer ...

High in the Himalayas, a new telescope is set to observe the night sky. The contraption has a 4-meter (13-foot) lens, but here’s the kicker: it’s made of liquid mercury, a material seldom used for ...

A team of Canadian and American scientists has made a liquid mirror that could one day be used to build a large moon-based telescope. The research team, led by Ermanno Borra of the University Laval in ...

A group of astronomers has been studying a 2008 proposal to build a telescope on the Moon. The telescope would be capable of peering back to the origins of the universe and could provide images of the ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto. NASA's ...

A brand new telescope in the Indian Himalayas has been commissioned at the Devasthal Observatory campus of Aryabhatta Research Institute of Observational Sciences (ARIES). The telescope is known as ...

The proposed lunar telescope would have a liquid mirror more than 300 feet in diameter. The telescope would be situated inside a crater at the moon’s north or south pole. This "ultimate" telescope ...