The project in the Atacama Desert could increase light pollution by up to 50%, making it much harder to observe the cosmos near the Paranal Observatory.

The astronomical site in peril is Mount Paranal, where the European Southern Observatory's (ESO) Very Large Telescope (VLT) ...

An in-depth technical analysis by the European Southern Observatory (ESO) has evaluated the impact of the INNA megaproject on the facilities at the Paranal Observatory, Chile—and the results are ...

This galaxy's central black hole appears to be a "messy eater" as its interstellar scraps are strewn into space.

JOHN BARTLETT, BYLINE: When night falls over the Paranal Observatory, which operates one of the world's most powerful telescopes, the skies above are dusted with brilliant constellations and nebulae.

Astronomers have confirmed the existence of four planets orbiting a star less than 6 light-years away with help from some of ...

An in-depth technical analysis by the European Southern Observatory (ESO) has evaluated the impact of the INNA megaproject on the facilities at the Paranal Observatory, Chile—and the results are ...