Vivian Poulin asks if the tension between a direct measurement of the Hubble constant and constraints from the early universe ...

New images of the infant universe captured by the Atacama Cosmology Telescope (ACT) are the most precise "baby pictures" to ...

The clearest and most precise images yet of the universe in its infancy—the earliest cosmic time accessible to humans—have ...

After five years of staring unblinking at the sky, the Atacama Cosmology Telescope (ACT) has compiled the most detailed map ...

Scientists using the James Webb and Hubble space telescopes have confirmed one of the biggest head-scratchers in modern ...

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

New data further challenge the best scientific theory of the history and the structure of the universe. But a separate recent ...

A map of the CMB published by ACT researchers. Research by the Atacama Cosmology Telescope collaboration has led to the ...

This is the disparity in the rate at which the universe expands, a value called the Hubble constant, depending upon how this expansion is measured. Using measurements of the movement of nearby ...

Scientists using the ACT have captured the clearest images of the universe first light, refining its age and expansion rate.

Research by the Atacama Cosmology Telescope collaboration has led to the clearest and most precise images yet of the universe ...