A never-before-seen image of the cosmic microwave background, combining data from the Atacama Cosmology Telescope (ACT) and ...

A telescope in Chile has spent years working on by far the most precise map of the earliest visible universe. It now reveals a lot about the cosmos. An international research group has created the ...

The images received from this telescope are known as the cosmic microwave background, and they provide an exceptionally clear picture of the universe at about 380,000 years old.

While previous telescopes mapped temperature fluctuations in the cosmic microwave background, indicating where matter was starting to clump together and foreshadowing the universe’s present-day ...