Poulier, P.-L.; Liang, Z.-C.; Fournier, D.; Gizon, L.: Contribution of flows around active regions to the north-south helioseismic travel-time measurements. Astronomy and Astrophysics 664, p. A189 (2022)
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.