Measuring light that has travelled for almost 14 billion years to reach a telescope high in the Chilean Andes, the two new ...

The images received from this telescope are known as the cosmic microwave background, and they provide an exceptionally clear ...

The Atacama Cosmology Telescope (ACT) collaboration, which includes researchers from the University of Toronto, recently ...

A long-simmering disagreement over the universe’s present-day expansion rate shows no signs of resolution, leaving experts ...