Uspensky, M. V.; Pellinen, R. J.; Baumjohann, W.; Starkov, G. V.; Nielsen, E.; Sofko, G. J.; Kaila, K. U.: Spatial variations of ionospheric conductivity and radar auroral amplitude in the eastward electrojet region during pre-substorm conditions. Journal Geophysical Research 52, p. 40 (1983)
Sofko, G. J.; Greenwald, R. A.; Korth, A.; Kremser, G.: STARE ionospheric electron flow during the August 28/78 GEOS-2 magnetopause crossing. In: Proceedings of Magnetospheric Boundary Layers Conference, Alpbach, 11-15 June 1979, pp. 183 - 185. ESA Publ. Div., Noordwijk (1979)
A star’s chemical composition strongly influences the ultraviolet radiation it emits into space and thus the conditions for the emergence of life in its neighbourhood.
A single star has provided information about the collision of the Milky Way with the dwarf galaxy Gaia-Enceladus. The event likely took place approximately 11.5 billion years ago.