IOWA - A NASA rocket launched Wednesday night has instruments from University of Iowa scientists. The U-I Space Physics program is conducting an experiment to find out how manmade radio waves behave in the atmospheric layer known as the ionosphere. The research could help with the operation of weather satellites, air traffic, the power grid and GPS. The Iowa researchers are assisting on a NASA project called VIPER. VIPER stands for Vlf trans-Ionospheric Propagation Experiment Rocket. The rocket is able to quickly, and relatively inexpensively get to an area in the atmosphere that's too high for airplanes and too low for satellites.