Golub, L.; Deluca, E.; Hamilton, P.; Nystrom, G.; Windt, D. L.; Schmidt, W. K. H.; Dannenberg, A.: A photometric imaging solar telescope, tunable in the extreme ultraviolet, utilizing multilayer x-ray optics. Review of Scientific Instruments 73, pp. 1908 - 1913 (2002)
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.