To my understanding, the Cosmic Microwave Background Radiation (CMBR) is light released during the recombination epoch where the formation of neutral hydrogen atoms allowed for a sudden drop in the universe's free electron density, hence allowing for light to travel long distances undisturbed by Compton scattering for .
Cosmic optical background (COB) radiation is the visible light analog to cosmic microwave background, in the sense of there being optical signal detected in areas between the known sources, from beyond the Milky Way..
The Cosmic Microwave Background (CMB) is the cooled remnant of the first light that could ever travel freely throughout the Universe.
This 'fossil' radiation, the furthest that any telescope can see, was released soon after the 'Big Bang'.
Scientists consider it as an echo or 'shockwave' of the Big Bang..
A source of natural background radiation, which originates in outer space and is composed of penetrating ionizing radiation (both particulate and electromagnetic).
The sun and stars send a constant stream of cosmic radiation to Earth, much like a steady drizzle of rain..
Take the case of Bell Labs physicists Arno Penzias and Robert Wilson, who set out to map radio signals from the Milky Way and wound up being the first to measure the cosmic background radiation (CMB)..
This basic design for a radiometer has been used in most subsequent cosmic microwave background experiments. ^ "The Cosmic Microwave Background Radiation (Nobel Lecture) by Robert Wilson 8 Dec 1978, p. 474" (PDF). ^ Dicke, R.
H.; et al. (1965). "Cosmic Black-Body Radiation".
Astrophysical Journal. 142:
One component is the cosmic microwave background.
This component is redshifted photons that have freely streamed from an epoch when the Universe became transparent for the first time to radiation.
Its discovery and detailed observations of its properties are considered one of the major confirmations of the Big Bang.
Cosmic background radiation is electromagnetic radiation that fills all space.
The origin of this radiation depends on the region of the spectrum that is observed.
One component is the cosmic microwave background.
Some fluctuations in the background are necessary in big bang cosmology to give enough non-uniformity for galaxies to form.
The apparent uniformity of the background radiation is the basis for the "galaxy formation problem" in big bang cosmology.
