Star-Crossed Galaxies

http://www.sciencefriday.com
Collisions between two spiral galaxies can be spectacular affairs, filled with drama and romance. Dr. Barry Rothberg of the Leibniz Institute for Astrophysics in Potsdam, details how the massive events play out and why the fate of our own galaxy, the Milky Way, could already be sealed.
Produced by Luke Groskin
Music by Audio Network
Footage and Galaxy Visualizations Courtesy of NASA; ESA; and F. Summers, STScI;
G. Besla, Columbia University; and R. van der Marel, STScI

Patrik Jonsson, Greg Novak and Joel Primack, UC Santa Cruz, 2008
V.Springel, Heidelberg University, Germany
T.J. Cox, Voxer
Phillip Hopkins, California Institute of Technology
Lars Hernquist, Harvard-Smithsonian Center for Astrophysics
Large Binocular Telescope Corp., Barry Rothberg and the Leibniz Institute for Astrophysics, Potsdam