AtLAST: the new giant eye that will see through cosmic dust

Published on May 23, 2026 | Translated from Spanish

An international team led by Europe has launched the AtLAST telescope, designed to explore regions of the universe hidden beneath dense layers of cosmic dust. With a 50-meter parabolic dish and a 12-meter secondary mirror, this instrument acts like a wide-angle lens, analyzing broad areas equivalent to 16 moons at once, something its predecessor ALMA cannot do.

AtLAST telescope 50-meter parabolic dish scanning through dense cosmic dust clouds, secondary mirror 12 meters collecting infrared light, wide-field view covering 16 lunar areas simultaneously, dust particles glowing orange and blue as they are penetrated by radio waves, ALMA comparison inset showing smaller field of view, cinematic engineering visualization, photorealistic metallic dish surface, dramatic space lighting, starfield background partially obscured by swirling dust, ultra-detailed mechanical structures, technical illustration style

Massive coverage and unprecedented submillimeter vision 🔭

Unlike telescopes such as ALMA, which only focus on very small areas of the sky, AtLAST offers a panoramic view of the submillimeter universe. Its design allows it to sweep across vast expanses in less time, capturing radiation escaping from dense dust clouds. This will facilitate the study of star formation, active galactic nuclei, and the edges of the early universe, providing data that previously required multiple fragmented observations.

The telescope that looks where ALMA could only peek 🌌

While ALMA struggles to focus on a speck of dust for hours, AtLAST arrives like that friend at a party who takes in the whole room at a glance. With its ability to cover 16 moons at once, astronomers can now say goodbye to obsessions over minute details and welcome a big-picture view. But let's not get too excited: the telescope is big, but it still can't find the keys lost in the sofa.