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.

Scrutinizing the cosmic microwave background has enabled scientists to search for exotic particles too light to be found any other way. Image Credit: Planck Collaboration/European Space Agency ...

The cosmic microwave background was created 300,000 years after the Big Bang, ... Each of the smaller peaks in its power spectrum tells us something about the details of the Universe.

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 ...

On November 18, 1989, NASA launched the Cosmic Background Explorer (COBE) satellite to measure the microwave radiation across the sky. The first results arrived quickly. Based on a mere nine minutes ...

In theory, we can measure this far into the future, as the “microwave” background drops into the radio portion of the spectrum, as the photon densities drop from around 411-per-cubic ...

This means that some photons from the cosmic microwave background, for example, would appear twice in the sky. The power spectrum associated with the Poincaré dodecahedral space is different from that ...

That light, the cosmic microwave background radiation (CMBR), comes to us from every direction in the sky, uniform except for faint ripples and bumps at brightness levels of only a few part in one ...

That is the cosmic microwave background that we observe. It last interacted with matter 13.7 billion years ago. Most of this light is currently in the microwave part of the spectrum, with a longer ...