topic 7

Subdecks (2)

Cards (28)

  • describe the steady state theory
    the steady state theory states that the universe has always existed but is expanding and creating matter to counteract the loss in density
  • describe the big bang theory
    the big bang theory states that the universe expanded from a very small dense point about 14 billion years ago
  • what does cmbr stand for
    cosmic microwave background radiation
  • what does cmbr provide further evidence for
    the big bang theory ,
    it is believed that cmbr originates from radiation produced in the big bang
  • how does the existence of cmbr support the expansion of the universe
    it is thought that gamma radiation was released in the big bang , the expansion of the universe has stretched this radiation , resulting in the microwave radiation present today