The view inside the half-constructed telescope dome, as of May 2024. (Image credit: B. Häußler/ESO) The sky above Cerro Armazones is extremely dry; there is very low precipitable water vapor ...

The under construction ESO Extremely Large Telescope in Chile was captured in 2025 and 2023 with the sun rising behind it.

The space-based observatory has revolutionized the way we see space, and it can now add another remarkable accomplishment to ...

The Very Large Telescope is situated atop Cerro Paranal, an 8,645-foot-high (2,635 m) mountain in Chile's Atacama Desert, about 75 miles (120 km) south of the port city of Antofagasta.

On Earth, water is so intertwined with life that our search for life on other worlds is essentially a search for water. When ...

The European Southern Observatory’s Very Large Telescope has detected "a scar imprinted on the surface" of white dwarf star ...

The Extremely Large Telescope or ELT will be the most powerful optical telescope ever built. When it opens for business in 2028, it promises to reshape our view of the cosmos.

Europe’s Extremely Large Telescope, as seen at night in June 2023 while under construction atop the summit of Cerro Armazones in Chile’s Atacama Desert.

They call it, simply, the Extremely Large Telescope (ELT), because it will be absolutely massive – the largest of its kind ever made. Its mission of "world’s biggest eye on the sky" will be ...

Construction on ESO's Extremely Large Telescope continues. Here, in this May 1, 2025 photo taken from directly above, the the hexagonal support structure that will hold the ELT's 128-foot (39 ...

The Extremely Large Telescope will revolutionize our view of the cosmos when it sees first light in Chile in 2028. In fact, it could detect hints of alien life around our closest neighboring star ...

The European Southern Observatory's (ESO) Extremely Large Telescope (ELT) — the world's largest visible- and infrared-light telescope — is currently under development on the Cerro Armazones ...