Trappist-1 Planets (IMAGE) University of California - Riverside Caption Three planets orbiting TRAPPIST-1 fall within that star's habitable zone. Credit (Image courtesy of R. Hurt/ NASA/JPL-Caltech) 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.