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 mountain ...

In some galaxies, large amounts of interstellar gas are spiralling around the super massive black hole and getting pulled in ...

The mighty telescope is expected to see its "first light" by 2028. The frame of the dome that will house the world's largest telescope has been completed, marking another key milestone in the ...

The frame of the dome that will house the world's largest telescope has been completed, marking another key milestone in the observatory's construction. The European Southern Observatory's (ESO ...

The superior sky-observing conditions in the area led ESO to choose the neighboring Mount Armazones as a location of its next generation sky-observing super-machine — the Extremely Large Telescope ...

A high-stakes face-off is brewing in the arid deserts of northern Chile, between astronomers building the world’s largest optical telescope and a proposed green energy megaproject from an ...

A survey published in 2023 found that among the world's 28 most powerful astronomical observatories, telescopes on Mount Paranal suffered from the lowest levels of artificial light pollution.

Credit: ESO/S. Lowery Once completed toward the end of this decade, ELT will be the world's largest telescope studying the universe in visible light, featuring a 130-foot-wide (39.3m) mirror.

Astronomers sound the alarm as a proposed renewable hydrogen project in Chile threatens to disrupt the pristine night skies ...

In February 1995, a small research organisation known as the SETI Institute launched what was then the most comprehensive ...

Katherine Laliotis is a freelance science writer and Ph.D. candidate in astrophysics. She often covers stories at the intersection of science and society.