Image of the Solar Protoplanetary Nebula (image) Waseda University Share Print E-Mail Caption Image of the solar protoplanetary nebula. Credit Credit: NASA/JPL-Caltech Usage Restrictions The image may only be used with approval from Waseda University and with appropriate caption/credit. 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.