In cosmology, the cosmic microwave background radiation is a form of electromagnetic radiation discovered in 1965 that fills the entire universe. It has a thermal 2.725 kelvin black body spectrum ...

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

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.

Is it possible to understand the Universe without understanding the largest structures that reside in it? In principle, not ...

What is cosmic microwave background radiation? Did it happen after the Big Bang? – Sreehari, aged nine, Kerala State, India. The Cosmic Microwave Background (CMB for short), is light: the oldest ...

In the Big Bang Theory, the cosmic microwave background — microwave-range radiation that floats through the entire universe ...

However, although photons of light existed since the first second after the Big Bang, they could not yet shine across the ...

The standard model of cosmology relies on an accurate reading of the cosmic microwave background. This radiation, emitted 380,000 years after the Big Bang, is considered proof of the theory's ...

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 ...

This afterglow—the "cosmic microwave background" (CMB), the relic radiation left behind by the Big Bang—has given astronomers insights into the birth of the universe and helped shape the ...