NASA’s twin Solar Terrestrial Relations Observatories mission, known as STEREO, successfully launched on Wednesday at 8:52 p.m. EDT from Cape Canaveral Air Force Station, Florida. STEREO’s nearly identical twin, golf cart-sized spacecraft will make observations to help researchers construct the first-ever three-dimensional views of the sun.
https://www.nasa.gov/home/hqnews/2006/oct/HQ_06340_STEREO_launch.html