英语作文"one change i dream in my family"

in 1948: an essay on the hot big bang model made a surprising prediction, early in the big bang radiation remains around us, but because of the expansion of the universe caused a red shift, its absolute temperature rest several degrees or so, at this temperature, radiation is in the microwave band. But before Penzias and Wilson observed the cosmic microwave background in 1965, people did not take the prophecy seriously..