plate-tectonic activity on Earth. On 8 September 2014, NASA reported finding evidence of plate tectonics on Europa, a satellite of Jupiter—the first sign of subduction activity on another world other than Earth. Titan, the largest moon of Saturn, was reported to show tectonic activity in images taken by the Huygens probe, which landed on Titan on January 14, 2005. Exoplanets On Earth-sized planets, plate tectonics is more likely if there are oceans of water. However, in 2007, two independent teams of researchers came to opposing conclusions about the likelihood of plate tectonics on larger super-Earths with one team saying that plate tectonics would be episodic or stagnant and the other team saying that plate tectonics is very likely on super-earths even if the planet is dry. Consideration of plate tectonics is a part of the search for extraterrestrial intelligence and extraterrestrial life. See also References Citations Sources Books Expanding Earth from pp. 311–49. ,translation: [Norwegian Geological Survey, Popular Science]. Articles External links This Dynamic Earth: The Story of Plate Tectonics. USGS. Understanding Plate Tectonics. USGS. An explanation of tectonic forces. Example of calculations to show that Earth Rotation could be a driving force. Bird, P. (2003); An updated digital model of plate boundaries. Map of tectonic plates . MORVEL plate velocity estimates and information. C. DeMets, D. Argus, & R. Gordon. Plate Model of Bird 2003 in Google Maps Videos Khan Academy Explanation of evidence 750 million years of global tectonic activity. Movie. Multiple videos of plate tectonic movements Quartz December 31, 2015 Geodynamics Geology theories Seismology Lithosphere