PHILADELPHIA, Pennsylvania, Jan. 23 (TNSjou) -- The University of Pennsylvania School of Arts and Sciences issued the following news: * * * Researchers combined cosmological data from two major surveys of the universe's evolutionary history and found that it may have become 'messier and complicated' than expected in recent years. * * * Across cosmic history, powerful forces have acted on matter, reshaping the universe into an increasingly complex web of structures. Now, new research led by  more PR