The South Pole Telescope has released its most precise image yet of the universe’s first light—the cosmic microwave background. This new ground-based data confirms cosmic expansion anomalies and ...

New observations support the idea that hot, diffuse threads of gas called cosmic filaments connect clusters of galaxies ...

Chi Nguyen remembers the moment she plugged her laptop into a large monitor in a conference room and onlookers began to cheer ...

The earliest light in the universe has been traveling across space since just after the Big Bang. Known as the cosmic ...

For years, scientists have worked to chart the universe’s massive structure, aiming to test key models of cosmology. These ...

Ever since the dawn of civilization on this planet the bipedal animals human beings have wondered about the creation of this universe Science has been trying to unravel the mystery surrounding its ori ...

Cosmic rays, she explained, carry a kind of fingerprint of their journey. They interact with interstellar gas, dust and even the cosmic microwave background. These collisions produce gamma rays and ...

ACT's data sheds light on the formation of the first galaxies, providing a snapshot of the Universe in its infancy. Mark Devlin explains that these measurements required five years of observation with ...

One approach looks far back in time, using the cosmic microwave background—the faint light left over from the Big Bang. The other relies on nearby observations, such as supernovae and stars ...

Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.

A new image of cosmic microwave background radiation (half-sky image at left, closeup at right) adds high definition from the Atacama Cosmology Telescope to an earlier image from the Planck satellite.