According to scientists, the universe began with a "big bang" and expanded to its current size. Physicists at the University of Southern Mississippi have now discovered that the universe may not only be expanding, but also oscillating or "ringing" at the same time. And they found that the universe appears to have slowed down and sped up not just once, but 7 times in the last 13.8 billion years. This oscillation is not a wave moving through the universe, but rather seems to be a "wave of the universe" -- The whole universe seems to be pulsating.