Staff at the European Southern Observatory have a system to clean the La Silla Observatory's delicate mirrors without ...

Even a speck of dust could alter the image quality. The high reflectivity and speed of this allow the telescope to capture a ...

the Extremely Large Telescope (ELT). With blanks made by the German company SCHOTT, this vast structure was the biggest that the company had ever made. But the mirror didn't just need to be big.

The game-changing Vera C. Rubin Observatory will collect more astronomical data in its first year than all other telescopes ...

Here’s how it works. The Extremely Large Telescope (ELT) will be the world's largest optical telescope, with a primary mirror that measures 128 feet (39 meters) across. It is being built by the ...

The center structure will support the telescope's large central mirror and secondary mirror. | Credit: ESO/G. Vecchia Progress has also been made on the polygon structure at the base inside of the ...

AGC Plasma Technology Solutions is proud to announce its pivotal role in enabling the European Southern Observatory's (ESO) Extremely Large Telescope (ELT) — the most ambitious ground-based ...

Astronomical images not only look beautiful, they also provide a wealth of information. What's behind it and what ...

This might sound like an obvious thing for a professional stargazer to say. But astrophysicist Federica Bianco was reacting ...

The telescope, which is being called the “Ultimately Large Telescope,” would measure ... but it gets a bit easier when you use a liquid as the mirror instead of polished glass.

Sculptor — officially labeled NGC 253 — is considered a starburst galaxy, one heavy with stellar action. It’s located 11 ...