![Donald Rethke](/stuff/contentmgr/files/1/464acf1879e999531b12667af5a6c3f7/header/donald_rethke_2007.jpg)
Donald Rethke
Donald Rethke, a retired engineer who worked to develop technological advances for safe space travel. His stage name is “Dr. Flush” and he plans to give a lively and humorous presentation about the astronauts’ space suits.
Last updated: January 5, 2012
September 29, 2007: AstroAssembly