Cosmological data suggest the universe has become 'messier and more complicated'

Across cosmic history, powerful forces have acted on matter, reshaping the universe into an increasingly complex web of structures. Now, new research led by Joshua Kim and Mathew Madhavacheril at the University of Pennsylvania and their collaborators at Lawrence Berkeley National Laboratory suggests our universe has become "messier and more complicated" over the roughly 13.8 billion years it's been around, or rather, the distribution of matter over the years is less "clumpy" than it should be expected.