The Lumpy Universe
One of the puzzles that cosmologists grapple with is the question of why the universe is lumpy. The universe has structure today – from super clusters of galaxies to galaxies and stars and all sorts of other objects down to planets and asteroids. But it was much simpler earlier in its history. How did all these clumps of matter evolve from an undifferentiated soup of elementary particles and forces that existed in the early universe following the Big Bang?
A lot of very clever people have been doing …