Hubble Reveals Cosmic Mystery
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. Read […]
NASA's Hubble Space Telescope has unveiled a cosmic mystery surrounding dwarf galaxies, revealing that these small galaxies can only retain a fraction of the oxygen produced by their stars. This revelation comes from a study of 37 nearby dwarf galaxies, including NGC 4449, which showed that much of the expected oxygen is missing. Hubble's observations have shed light on the enigmatic distribution of oxygen in these galaxies, challenging our understanding of how these celestial bodies manage their elemental composition.
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- Hubble Reveals Cosmic Mystery nasa.gov
