The Gamma-Ray Imager/Polarimeter for Solar flares (image) NASA/Goddard Space Flight Center Share Print E-Mail Caption The Gamma-Ray Imager/Polarimeter for Solar flares, or GRIPS, payload launched into the sky on a giant balloon on Jan. 18, 2016. It will ride the winds around the South Pole for at least two weeks while observing gamma rays from the sun. Credit Credits: NASA/Albert Shih Usage Restrictions None Share Print E-Mail 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.