RXTE Reveals the Cloudy Cores of Active Galaxies (video) NASA/Goddard Space Flight Center Share Print E-Mail Loading video... Caption Zoom into the cloudy heart of an active galaxy. This animation shows an artist's rendition of the cloudy structure revealed by a study of data from NASA's Rossi X-Ray Timing Explorer satellite. Credit NASA's Goddard Space Flight Center/Wolfgang Steffen, UNAM Usage Restrictions None 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.