geospaceThe domain of Sun-Earth interactions, also known as the solar-terrestrial environment. It consists of the particles, fields, and radiation environment from the Sun to Earth's space plasma environment and upper atmosphere. Geospace is considered to be the fourth physical geosphere, after solid earth, oceans, and atmosphere. Related category• CELESTIAL MECHANICSAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |