FLIGHT TRAINING (IMAGE) Southwest Research Institute Caption Dr. Alan Stern, planetary scientist and associate vice president of Southwest Research Institute’s Space Science Division, undergoes flight training aboard an F-104 jet in preparation for his November 2 flight aboard the Virgin Galactic commercial spacecraft VSS Unity on a suborbital space mission Credit Starfighters, Inc. Usage Restrictions Images/Videos may be used by the public for educational and informational purposes only. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.