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

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

Hidden in Chile’s Atacama Desert, the $1.5B Extremely Large Telescope (ELT) nears completion. With a massive 130-ft mirror, ...

A project expected to bring major changes to humanity's understanding of the universe, the Extremely Large Telescope with a main mirror nearly 40 meters across, is being assembled in Chile's Atacama ...

The European Southern Observatory's (ESO) Extremely Large Telescope (ELT) — the world's largest visible- and infrared-light ...

The Extremely Large Telescope, under construction in Chile, aims to explore exoplanets for potential life and examine the ...

Mount Paranal, an 8,740-foot-high (2,664 m) peak in the Atacama Desert of Northern Chile, is one of the last spots on Earth ...

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

Astronomers are raising concerns about the impact of light pollution from a renewable energy project on the world’s most ...

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

Penzias and Wilson discover Cosmic Microwave Background radiation, supporting the Big Bang theory. Fr. Hincks now uses ACT ...

The vast white sands of the Lencois Maranhenses desert meet with the Amazon rainforest in Brazil. This surreal landscape is ...