The effects of a proposed green-energy facility in Chile could be devastating for some of the most powerful instruments ...

Chile's Atacama desert is the driest non-polar region on Earth, where "the sky shines when the sun sets", said The Guardian.

Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.

The clearest and most precise images yet of the universe’s infancy from the Atacama Cosmology Telescope show the first steps ...

The final results from the Atacama Cosmology Telescope offer the sharpest, most sensitive view of the early cosmos that ...

The stunning comet C/2024 G3 lights up the sunset sky over Chile's Very Large Telescope in this spectacular photo.

New research by the Atacama Cosmology Telescope (ACT) collaboration has produced the clearest images yet of the universe’s ...

New insights from the Atacama Cosmology Telescope offer unprecedented images of the universe at 380,000 years old, revealing ...

Research by the Atacama Cosmology Telescope collaboration has led to the clearest and most precise images yet of the universe’s infancy, the cosmic microwave background radiation that was visible only ...

New findings from the Atacama Cosmology Telescope (ACT) collaboration may have just unveiled the sharpest images of the ...

In February 2025, conditions were just right to catch a "planetary party" above the European Southern Observatory's (ESO) ...

The Canadian-built Atacama Cosmology Telescope in the high Chilean desert mountains, which has just given up its final batch ...