Envisat, launched in 2002, was the largest Earth Observation (EO) satellite ever flown. Its multi-instrument capabilities and polar orbit allowed it to provide continuous observation and monitoring of the Earth’s land, atmosphere, oceans and ice caps. Unfortunately, Envisat’s mission ended in 2012 when communication with the satellite was abruptly lost, and efforts to re-establish contact were unsuccessful.
Some of Envisat's Mission Milestones
The first animation ever produced showing the global distribution of methane, the second most important greenhouse gas. Dr. Michael Buchwitz and Oliver Schneising from the Institute of Environmental Physics (IUP) at the University of Bremen in Germany produced the animation using Envisat SCIAMACHY observations from 2003 to 2005. Credit ESA