SPACE - Astronomer creates computer models that help explain how galaxies formed and evolved

(Phys.org)-When most people think of astronomers, they envision scientists who spend time peering at stars and galaxies through telescopes on high mountain tops. Rutgers astronomer Rachel Somerville depends on those who make such observations, both from telescopes on the ground and orbiting earth in space. But her primary tool for understanding how galaxies formed billions of years ago - and how they continue to evolve in our contemporary universe - are large computers.
http://phys.org/news/2013-01-astronomer-galaxies-evolved.htm