The Atacama Cosmology Telescope
The goals of the ACT project are to study how the universe began, what it is made of, and how it evolved to its current state. This pursuit is part of the field of scientific cosmology in which one asks questions about the Universe on the largest and grandest scales. Over the past two decades, there has been a tremendous flourishing of the field, driven by many excellent astronomical measurements. This has led to the development of a precise and elegant understanding of cosmology.
The Atacama Cosmology Telescope took its final data in 2022 and has been decommissioned. Most of its years of data have been made public on the NASA LAMBDA data archive. One final large data release is planned, labeled DR6.