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Hubble finds missing oxygen in nearby dwarf galaxies
Original: NASA’s Hubble Uncovers Case of Missing Oxygen in Nearby Dwarf Galaxies
NASA reports that the Hubble Space Telescope has uncovered a case of missing oxygen in dwarf galaxies near the Milky Way, a finding announced via NASA Science. Oxygen is a key tracer of star formation and galactic evolution, so its apparent absence in these small galaxies raises fresh questions about how they form stars and lose or retain heavy elements. Details of the observations and possible explanations remain limited so far, with astronomers expected to weigh in as more information emerges.
Why now: A surprising new Hubble finding about galactic chemistry has just been announced by NASA.
Evidence
- NASA’s Hubble Uncovers Case of Missing Oxygen in Nearby Dwarf Galaxies · NASA Science (.gov)
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