Cosmology Large Angular Scale Surveyor

The Cosmology Large Angular Scale Surveyor is a radio telescope array positioned on a mountain summit in the Atacama Desert, operating across frequencies from 40 to 220 GHz. The system uses advanced cryogenic technology to shield measurements from heat interference.

The project started in 2016 with its Q-band instrument and expanded to include W-band capabilities two years later. High-frequency instruments were added afterward, building up the facility's observational range.

The facility brings together researchers from across the globe who work collaboratively to understand the universe's history. Their combined efforts here contribute to worldwide knowledge about how the cosmos began and evolved.

The facility sits on a high mountain where dry air and minimal cloud cover provide ideal conditions for observations. Visitors should prepare for elevation and harsh weather conditions, as access roads to this remote location are limited.

The array can capture the polarization of cosmic background radiation with exceptional accuracy. This ability allows researchers to detect tiny details from the earliest times of the universe.

Elevation above the sea: 5,140 m

Website: https://sites.krieger.jhu.edu/class

GPS coordinates: -22.95970,-67.78720

Latest update: December 12, 2025 14:27