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Hubble Discovers 'Missing Oxygen' in Nearby Dwarf Galaxies

NASA's Hubble Space Telescope studied 37 dwarf galaxies and found less oxygen than models predicted, possibly lost to galactic winds.

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Clumpy, irregular, cloud-like dwarf galaxy in a roughly rectangular shape is speckled with small, bright, blue points of light and larger, light pink patches throughout. Dark brown and milky white areas are also smudged throughout the center of the galaxy. The galaxy appears against a mostly black background lightly dotted with tiny white, blue, and red stars, and galaxies.

TLDR

This finding challenges current galaxy evolution models and understanding of chemical enrichment processes. It suggests supernova-driven galactic winds are more efficient at removing oxygen than theoretical models account for, raising questions about how galaxies evolve and enrich themselves chemically.

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2 Sources, first seen 1d ago