Chemical map of the Milky Way
Gaia all-sky chemical map of the Milky Way. The colours in the map indicates stellar metallicity: mean abundance of all chemical elements except helium or hydrogen. Red colour shows stars that are richer in metals. Older stars with fewer metals have lower metallicity and are seen as a blue colour., by EUROPEAN SPACE AGENCY/GAIA/DPAC/SCIENCE PHOTO LIBRARY
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