The big bang caused the background radiation.
The "big bang" better described as the rapid expansion of our Universe.
cosmic background radiation :) This phenomenon can be picked up by an ordinary radio or tv. If your radio is not tuned into a station, then some of the the noise (interference) you hear is the cosmic background radiation caused by the Big Bang.
the weakness of cosmic back ground radiation as those radiation are left over of big bangs
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
Natural background radiation
cosmic microwave background radiation.
That is not currently known for sure. Check the Wikipedia article on "Ultra-high energy cosmic rays" for different explanations about how they MIGHT be caused.
radiationsThe big bang
The cosmic background radiation is believed to be the remains of the radiation emitted by the Universe when it started to get transparent - when it had cooled down to a temperature of about 3000 kelvin.
The cosmic background radiation was discovered in 1964 by American radio astronomers Arno Penzias and Robert Wilson
Then it will not emit any more radiation - except that it will eventually re-emit any radiation it receives, especially the cosmic background radiation.Then it will not emit any more radiation - except that it will eventually re-emit any radiation it receives, especially the cosmic background radiation.Then it will not emit any more radiation - except that it will eventually re-emit any radiation it receives, especially the cosmic background radiation.Then it will not emit any more radiation - except that it will eventually re-emit any radiation it receives, especially the cosmic background radiation.
The leftover thermal energy from the Big Bang is known as the cosmic microwave background radiation (CMB). It is a faint glow of radiation that permeates the universe and is considered a remnant from the early universe when it was much hotter and denser. The CMB provides important clues about the early universe's properties and evolution.