遥远星系的质量可能比看起来更大

韦布空间望远镜（JWST）的观测结果显示，遥远的大质量星系中包含的小恒星数量远超预期。这一发现表明早期大质量星系的质量可能比此前测定的更高，从而对现有的星系形成模型提出了挑战。

Nature Astronomy, Published online: 21 August 2026; doi:10.1038/s41550-026-02947-x JWST observations reveal that distant massive galaxies contain far more small stars than expected, increasing their masses by a factor of up to four compared with initial measurements. This finding suggests that early massive galaxies might be heavier than previously found, challenging galaxy formation models.