Observatories in Chile’s Atacama Desert, including the world’s largest optical telescope, could be blinded by light pollution ...

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 ...

Astronomers are sounding alarm bells as the world's most precious sky-observing location faces a risk of being blinded by ...

The location is in Mount Paranal, home to the European Southern Observatory’s (ESO) Very Large Telescope (VLT), one of the ...

Dozens of boxes holding mirrors are placed along a remote desert hill in northern Chile as workers make progress in the ...

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

European Southern Observatory Director General Xavier Barcons told Space.com that astronomers expect the project to brighten ...