Generally speaking, creating custom mirrors is a complex task that involves a lot of careful grinding, and isn’t something to be taken lightly if you need precision results. Just ask the folks who ...

As frustrating as having an atmosphere can be for physicists, it’s just as bad for astronomers, who have to deal with clouds, atmospheric absorption of certain wavelengths, and other irritations. One ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The largest single-piece astronomical mirrors ever made are slowly coming together for an ...