'Scientists understand only 4% of universe'

Despite all the scientific breakthroughs and Nobel Prizes for discoveries, scientists seem to be no nearer to a possible answer to their main question - why did the universe appear? ­RT sat down to talk to Aleksey Filippenko, an American astrophysicist and professor of astronomy at the University of California, Berkeley, CA. He was the member of the team that received 2011 Nobel Prize for dis ...