This photo released on Nov. 2, 2026, showcases NGC 4449, a dwarf irregular. Researchers using NASA’s Hubble Space Telescope studied 37 nearby dwarf galaxies — small galaxies containing a few thousand to hundreds of millions of stars — including NGC 4449 and found that much of the oxygen they expected to see is missing.
Image credit: NASA, ESA, Hubble Heritage–ESA/Hubble Collaboration, Alessandra Aloisi (STScI, ESA)
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