Important notice about the STEREO redirects New procedure for updating SolarSoft Read-only problem while updating SolarSoft with WGET Information about STEREO-A close approach to Earth, August 2023 Anticipated STEREO observations of Comet ISON New: Where to view Comet ISON's encounter with the Sun. Comet C/2012 S1 was discovered in September 2012 by Russian astronomers Vitali Nevski and Artyom Nov