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 ...

Imagine a space telescope with a mirror stretching 50 meters across! That's larger than the width of a U.K. soccer field and nearly eight times wider than the James Webb Space Telescope. Now imagine ...

A team of internationally renowned astronomers and opticians may have found a way to make "unbelievably large" telescopes on the Moon. "It's so simple," says Ermanno F. Borra, physics professor at the ...

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 ...

Someday, astronauts on the moon may pour liquid onto a disc-shaped mesh to make a huge mirror for a powerful telescope, according to a technical article just made public. The liquid would include a ...

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 ...

Researchers in Canada have built the first deformable liquid mirror from a magnetic liquid or “ferrofluid”, which could someday be used to compensate for distortion in the images of telescopes and ...

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 ...

ATOP an Indian mountain sits a 4-metre-wide reflecting basin, its ripple-free surface mirroring everything above it. It is as if someone scooped up a piece of the Bolivian salt flats, the world’s ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? In 2008, a group of astronomers from around the world came to NASA with a wild idea: ...