If you love the utility of a large mirror, but don't have the ability to hang up a big one, then you'll love this hack. Here's how to create that same feel.

Researchers have developed a new way to produce and shape large, high-quality mirrors that are much thinner than the primary mirrors previously used for telescopes deployed in space. The resulting ...

The upcoming Extremely Large Telescope (ELT) is very aptly named. When it’s completed in 2024, it will be the largest optical telescope in the world, with a mirror more than 120 feet across. That ...

In the ultra-precision machining of optical components, the checking tools are specially used to control their surface shape accuracy. As the ultra-precision core component of telescope systems, the ...