Mike Every knows about grinding glass—and he doesn’t like it. The second-year physics major from Saugerties, N.Y., is an amateur telescope maker with an idea for producing lightweight mirrors out of ...

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When it comes to telescopes and how powerful they are for looking deep into the cosmos, there are lots of factors to consider. Such as the portion of the electromagnetic spectrum the telescope operate ...

All telescopes perform basically the same function. They gather as much light as possible from a faint astronomical object, and focus the light onto a detector. Historically, the gathering of light ...