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Too much sodium turns a star blue

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An international team of astrophysicists, led by researchers from the Université de Montréal, has identified a star on which a sodium-rich asteroid has crashed, drastically transforming its apparent color. These results raise many questions about the…

Fortuitous discovery of a new galaxy in the cosmic neighbourhood

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Astronomers using the NASA/ESA Hubble Space Telescope to study some of the oldest and faintest stars in the globular cluster NGC 6752 have made an unexpected finding. They discovered a dwarf galaxy in our cosmic backyard,…