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, ...

With unique capabilities to track microwave energy fluctuations, a small observatory in the Andes mountains of northern Chile produced maps of 75% of the sky as part of an effort to more accurately ...

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 ...

Sometimes, a picture can be worth much more than a thousand words. For instance, one measure associated with the pictures below—new high-definition snapshots of the cosmos in its infancy—is 1,900 ...

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.

Better insights on the mysterious cosmic microwave background have arrived, and possibly more are on the way, according to scientists. The cosmic microwave background is deemed the earliest light in ...

Sure, they're not your typical baby pictures. But a global team of researchers says new images published this week show some of the clearest visualizations yet of the universe in its infancy. If our ...

The events surrounding the Big Bang were so cataclysmic that they left an indelible imprint on the fabric of the cosmos. We can detect these scars today by observing the oldest light in the universe.

The earliest light in the universe has been traveling across space since just after the Big Bang. Known as the cosmic microwave background, it is imperceptible to the human eye. But if scientists can ...