The cosmic microwave background (CMB) is primeval radiation emitted shortly after the Big Bang. Regarded as an 'echo' of the Big Bang, CMB fills the universe.

This is the Cosmic Microwave Background, electromagnetic radiation from almost 13.8 billion years ago, immediately after the Big Bang. It’s the border of the known universe. NASA/WMAP Science ...

The Cosmic Microwave Background carries with it a record of events throughout the 13.8-billion-year history of the universe. When you purchase through links on our site, we may earn an affiliate ...

J P Luminet et al. 2003 Dodecahedral space topology as an explanation for weak wide-angle temperature correlations in the cosmic microwave background Nature 425 593 A Riazuelo et al. 2004 Cosmic ...

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.

Last kiss. The polarization of the microwave background records minute density differences from that early era. After the Big Bang, 13.8 billion years ago, the universe was so hot and dense that ...

There is something else that fills up the voids: radiation. The cosmic microwave background — the leftover light from when the universe was only 380,000 years old — soaks the entire cosmos ...

The image shows the cosmic microwave background radiation visible 380,000 years after the Big Bang. ACT Collaboration; ESA/Planck Collaboration "Before, we got to see where things were, and now we ...

Astronomers discovered cosmic microwave background radiation in the 1960s. The wavelength of this radiation appears to be the same no matter where in space that it comes from and it corresponds to ...