NASA’s Hubble Uncovers Case of Missing Oxygen in Nearby Dwarf Galaxies

NASA’s Hubble studied 37 nearby dwarf galaxies and found that much of the oxygen they expected to see is missing.

哈勃望遠鏡對37個近鄰矮星系的觀測顯示，恆星產生的氧大部分被超新星驅動的星系風拋射出星系，留存比例遠低於理論模擬的預期。研究以氧作為重元素示蹤物，揭示矮星系在宇宙物質循環中的角色。