11.   But he eventually came to terms with the Big Bang, and has since made a profession of observing its afterglow, the cosmic microwave background radiation.

12.   For the first time in history, we are being bombarded by manmade background radiation which has risen by factors of millions since the World War II.

13.   Framatome, the French reactor company that will do much of the work, said it could compensate for the high background radiation.

14.   He is a theoretical astronomer who studies cosmic background radiation and uses data to make computer-generated models of the universe.

15.   He is a theoretical astonomer who studies cosmic microwave background radiation and uses data to make computer-generated models of the universe.

16.   Indeed, Bikini now has less background radiation than some American cities.

17.   Once in place, it will be possible to detect rises in the level of background gamma radiation.

18.   That glow, called cosmic microwave background radiation, carried an imprint of those waves to the detectors on Earth.

19.   That glow is called the cosmic microwave background radiation, and the ripples imprinted on it can be used like ticks on a ruler to measure the cosmos.

20.   The background radiation, cosmologists believe, was emitted from the fireball of the Big Bang after the inflationary expansion a few hundred thousand years after the creation event.