Michael Kavaya, of the NASA Langley Research Center, a Principal Investigator for the DAWN experiment, looks over data with Jeffrey Beyon during a flight of the NASA DC-8, Tuesday, Aug. 17, 2010, in the Gulf of Mexico. The DAWN experiment, also known as the Doppler Aerosol WINd lidar, in one of many experiments supporting the Genesis and Rapid Intensification Processes GRIP experiment is a NASA Earth science field experiment in 2010 that is being conducted to better understand how tropical storms form and develop into major hurricanes. Photo Credit: NASA/Paul E. Alers NASA Identifier: 201008170002HQ