Stereo Mission Overview

NASA's Solar TErrestrial RElations Observatory (STEREO) mission began as a concept study in 1997 and was confirmed as a follow on to NASA's highly successful line of Solar observing missions. Launched on October 25, 2006 the twin observatories will take unprecedented images of the sun from a unique off the sun-earth axis angle in 3-D. Along with the suite of ultraviolet and visible light imagers the mission also carries an array of state of the art energetic particle detectors and electromagnetic sensors to enable better understanding of the dynamics of the sun's coronal mass ejections and solar wind.