The cosmic microwave background can help scientists piece together the history of the universe. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

The cosmic microwave background (CMB) was discovered serendipitously in the mid-1960s by Arno Penzias and Robert Wilson, providing crucial observational evidence for the Big Bang theory through the ...

So much happened in the earliest moments of the universe. Elementary particles appeared, the first nuclei of hydrogen and helium, and fluctuations of energy and matter set into motion the formation of ...

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.

The Cosmic Microwave Background, or CMB, is radiation that fills the universe and can be detected in every direction. Microwaves are invisible to the naked eye so they cannot be seen without ...

Nearly forty years ago, two radio astronomers at Bell Laboratories in New Jersey were testing a telescope when they discovered unexplained static coming from every direction in the sky. After removing ...