For centuries, telescopes of various kinds have been giving human beings on Earth a better glimpse into the surrounding universe. The use of telescopes in astronomy goes back to the days of 17th ...

When astronomers point their telescopes up at the sky to see distant supernovae or quasars, they’re collecting light that’s traveled millions or even billions of light-years through space. Even huge ...

NASA’s James Webb Telescope is designed to peer back in time across the universe, observing distant galaxies that are over 13 billion light years away. But to get a glimpse, the telescope needs a ...

NASA's James Webb Space Telescope requires a primary mirror so large that it would not fit inside any existing rockets as one single, large mirror. Because of this, Webb is equipped with a ...

Ever wanted to take a tour of one of the most world renown astronomical mirror laboratories in the world? Now you can. The UA’s Steward Observatory is now conducting tours of the Mirror Lab facility ...

Over the past 20 years, a new generation of big telescopes has allowed astronomers to discover distant planets and galaxies. But those telescopes are runts compared to what's coming. Mirrors for what ...

The use of larger mirrors enabled the creation of more powerful telescopes over time. However, by the 1970s the size of the mirror itself was becoming a limiting factor on building better telescopes ...

'It could make lightweight mirrors that are 15 or 20 meters in diameter a reality.' When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking ...

When astronomers point their telescopes up at the sky to see distant supernovae or quasars, they’re collecting light that’s traveled millions or even billions of light-years through space. Even huge ...

With the casting of a 6.5-meter mirror in Arizona August 26, Mexican and American astronomers have taken the first step toward creating a new telescope that will survey infrared objects in the ...

Buddy Martin works for Steward Observatory, part of the University of Arizona. He receives funding from the Giant Magellan Telescope Organization. The University of Arizona is a partner in the Giant ...