The third mission in NASA's Solar Terrestrial Probes program. STEREO. or Solar TErrestrial RElations Observatory.
provides a unique and revolutionary view of the Sun-Earth System.
The mission is the first to take measurements of the sun and solar wind in 3-dimensions. providing a new view to
improve our understanding of space weather and its impact on Earth.
The twin STEREO observatories soared into space atop a Boeing Delta II rocket from Cape Canaveral
Air Force Station in Florida at 8:52 p.m. Eastern time on Oct. 25. 2006.
Liftoff of the Delta II rocket with STEREO. giving us a 3-dimensional look at the physics of our sun.
STEREO's unique stereoscopic images of the structure of Coronal mass ejections. or CMEs.
will enable scientists to determine their fundamental nature and origin.
In much the same way that satellites allow forecasters to see the development of a hurricane. NASA's STEREO
spacecraft continue to capture images of solar storms. allowing scientists to accurately measure the storms for the first time.