Astronauts To Conduct Study of Bacteria in Space August 13, 2007 Science Daily, Aug, 13, 2007 UTMB's David W. Niesel is quoted in a story today, Monday, Aug. 13, 2007, in Science Daily News on a scientific experiment that astronauts on the Endeavor are conducting. The experiment is to monitor the effects of space on a common microorganism. Niesel is the project's principal investigator. « Back | The Newsroom »