News Photos

Caption: How Spiral Galaxies Get Their Arms: The image below and video animation shows a simulation of arm formation in spiral galaxies. The simulation was performed by UW-Madison astrophysicist Elena D’Onghia, who led new research in the area along with Harvard-Smithsonian Center for Astrophysics colleagues Mark Vogelsberger and Lars Hernquist.
Date: 2013
Image: The visualization was created by Thiago Ize and Chris Johnson of the University of Utah's Scientific Computing and Imaging Institute.
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Photo use

Photographs are available to media organizations and University of Wisconsin-Madison departments for news, editorial and public relations uses, both print and electronic, that are directly related to UW-Madison. They are NOT available for generic use. For university-related use -- including textbooks, commercial products or advertising -- please contact Bryce Richter, photographer, University Communications, (608) 262-7411 or

Published photos must include a credit ("photographer's name/University of Wisconsin-Madison" or "courtesy of"). The specific credit and other details are also embedded in the digital file, which can be viewed by using Photoshop and selecting "file>file info."

None of these images may be modified, altered or used in any way that changes or misrepresents the photograph's content or overall context.