A never-before-seen image of the cosmic microwave background, combining data from the Atacama Cosmology Telescope (ACT) and the Planck satellite, offers a high-definition view of the early Universe.

The clearest pictures yet of the newborn cosmos strengthen the prevailing model of the universe but deepen a mystery about its expansion rate. Measurements of this rate, known as the Hubble constant, ...

New research has unveiled images of the universe in its infancy—a mere 388,000 after the Big Bang. The snaps of the universe were produced by the Atacama Cosmology Telescope collaboration (ACT), which ...

The earliest galaxies may have scrambled our reading of the Universe. A new study challenges the traditional interpretation of the cosmic microwave background, this fossil light from the Big Bang.

It’s hard to picture the universe in its infancy. The middle-aged cosmos now stretches across 93 billion light-years, holding up to two trillion galaxies and more than 200 billion trillion stars. But ...

Telescopes from the CLASS project in Chile detect faint microwave signals from the early universe. (Deniz Valle and Jullianna Couto/Johns Hopkins University) (CN) — High in Chile's Andes Mountains, ...

For the first time, scientists have used Earth-based telescopes to look back over 13 billion years to see how the first stars in the universe affect light emitted from the big bang. Using telescopes ...

Findings from a new study into the cosmic "afterglow" may rewrite the history of the universe, according to researchers. This afterglow—the "cosmic microwave background" (CMB), the relic radiation ...

Astronomers have used ground-based telescopes for the first time to peer back 13 billion years in time to observe the universe when the first stars first lifted the cosmic darkness. This period, ...

George Smoot , who shared the Nobel Prize for Physics in 2006 for his studies of the cosmic microwave background (CMB), died on 18 September at the age of 80. Smoot’s work on the blackbody form and ...