What is the cosmic microwave background?

cosmic microwave background, usually shortened CMB, is a form of electromagnetic radiation that permeates the entire universe. It has a temperature of 2.725 kB and is in the microwave part of the spectrum (hence its name), the peak of the intensity at a wavelength of 1.9 mm. The cosmic microwave background is sometimes called the "echo of the Big Bang" and is the best current proof that the universe in which we live began as a gigantic explosion from a point source. This helps to suggest that it comes from something that affected the entire universe than just a subgroup of the universe. The spectrum of the cosmic microwave background has a distinction that it is the most measured spectrum of the black body in nature.getic Dark Orsion in space for the first several million years after the Big Bang. At that time, the entire universe was opaque and made of plasma, like a giant star thousands or millions of light -years. In the end, the plasma cooled into neutral atoms, when the photons refused from the matter and began to move freely through space. Photons have been cooling since then and continuing to chill from their sub -Temperatures of about 2.7 hp.

The cosmic microwave background was originally predicted that in 1948 there was George Gamow and Ralph Alpi, but it was not observed only in 1956. The microwave background comes from the spherical surface called the last dispersion, referring to the point of the Universe when it stops freely and began to move.

One of the most famous pictures in cosmology is the movement of the microwave, taken by the Cobe satellite in 1990.