Al Kogut, NASA (IMAGE) NASA/Goddard Space Flight Center Caption NASA scientist Al Kogut will search for evidence of cosmological inflation with a balloon-borne observatory called PIPER. Credit Credits: NASA/W. Hrybyk 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.