this is radiation in the microwave part of the electromagnetic spectrum which comes from all directions in outer space
cosmic microwave background radiation.
Primordial background radiation is in actuality Cosmic Microwave Background. To discover just what Cosmic Microwave Background theories are, visit the URL posted below:http://www.astro.ucla.edu/~wright/CMB.html
1965.
The spectral energy distribution of the microwave background radiation found in the universe is that of a perfectly absorbing body (blackbody) radiating at 2.70 Kelvin.
The evidence of cosmic microwave background radiation supports the Big Bang theory.
microwave background radiation is a thermal radiation left from the early stage of universe when it was much small and much hotter and filled with uniformly distributed opaque fog of hydrogen plasma
The radiation left over from the big bang is found in the microwave region of the electromagnetic spectrum. As the universe expanded and cooled, the intense hard gamma radiation that existed became radio waves in the low gigahertz region, characteristic of a temperature around 30 Kelvin.
cosmic microwave background radiation.
CMB is cosmic microwave background radiation. It is the radiation that is the basis for the Big Bang theory.
Microwave (Cosmic background radiation).
cosmic microwave background radiation
Where? Everywhere. This is the residual radiation, from when the Universe was very, very hot.