#2217 - Brian Cox

5539.669 - 5563.9 Brian Cox

Are there alternative theories? There are. Are they compelling? No, they all have problems. And most of them have problems with that pattern, the CMB, the cosmic microwave background that we just saw. Because that pattern, what you're looking at actually in that pattern is acoustic, it's waves, sound waves essentially in the early universe that go through the plasma of the early universe.