Purdue University Leo Aerospace (IMAGE) Purdue University Caption Leo Aerospace, a Purdue University-affiliated startup looking to launch rockets with the help of hot air balloons, took the stage in early October at TechCrunch's Disrupt SF Startup Battlefield in California. Credit Michael Hepfer/Leo Aerospace Usage Restrictions None 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.