Water is Detected in a Planet Outside Our Solar System (2 of 2) (image) Penn State Share Print E-Mail Caption Water has been detected in the atmosphere of a planet outside our solar system with a new technique that could help researchers to learn how many planets with water, like Earth, exist throughout the universe. The planet is orbiting the near-by star nearby star tau Boötes. This map shows the constellation Boötes. The exoplanet tau Boötes b orbits the star tau Boötes, which is indicated by the red circle. Credit Image courtesy of the International Astronomical Union and Sky and Telescope magazine. Usage Restrictions The image credit must be published along with the image. 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.