Hubble study finds dwarf galaxies lose most of their oxygen

NASA's Hubble Space Telescope has captured a new image of NGC 4449, a dwarf galaxy included in the Galaxies Losing Oxygen via Winds (GLOW) study. The research focuses on how these small galaxies process the oxygen generated by their stars.

According to the study, dwarf galaxies hold onto only a tiny portion of the oxygen their stars create. The rest escapes, likely carried away by winds. This finding sheds light on the chemical evolution of galaxies.

The image of NGC 4449 shows a chaotic, star-forming region with bright clusters and dark dust lanes. The galaxy is part of a broader effort to understand how dwarf galaxies lose the heavy elements they produce.