Jean-Loup Puget (IMAGE) International Astronomical Union Caption An image of Jean-Loup Puget, one of the Principal Investigators of the European Space Agency's Planck observatory and co-recipient of the 2018 Gruber Cosmology Prize. Credit Jean-Loup Puget/ Gruber Foundation 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.