Alien Atmospheres (VIDEO) NASA/Goddard Space Flight Center This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Although most of the planets outside of our solar system (called "exoplanets") are too distant to be seen, astronomers have developed indirect methods to determine their size, mass, and even their atmospheric makeup -- taking us one step closer to finding a world like our own. High Resolution, downloadable and various formats found here: http://svs.gsfc.nasa.gov//vis/a010000/a011400/a011428/. Credit NASA SVS 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.