natural environment geomagnetosphere http://orcid.org/0000-0002-5111-7263, https://orcid.org/0000-0001-9227-0670 https://www.swpc.noaa.gov/phenomena/earths-magnetosphere The geomagnetosphere is the region of space surrounding Earth where the dominant magnetic field is the magnetic field of Earth, rather than the magnetic field of interplanetary space. The geomagnetosphere is formed by the interaction of the solar wind with Earth’s magnetic field.