美国宇航局的哈勃太空望远镜确认云9号——一团富含暗物质的巨大无恒星气体云——是梅西耶94号附近的原始“失败星系”。 NASA's Hubble Space Telescope confirmed Cloud-9, a massive, starless gas cloud rich in dark matter, as a primordial "failed galaxy" near Messier 94.

美国宇航局的哈勃太空望远镜已经发现了云-9:一个无星,富含气体的云,直径约4900光年,质量约为100万太阳质量的气体,总质量估计为50亿太阳质量, NASA’s Hubble Space Telescope has identified Cloud-9, a starless, gas-rich cloud about 4,900 light-years across with a mass of roughly one million solar masses in gas and an estimated total mass of five billion solar masses, indicating it is dominated by dark matter. 通过中国FAST望远镜的无线电测量发现并经美国观测站证实,Cloud-9是一个紧凑的球体结构,靠近Messier 94星系,据信是一个原始的“失败星系”,由于气体不足,它从未形成恒星。 Discovered via radio surveys by China’s FAST telescope and confirmed by U.S. observatories, Cloud-9 is a compact, spherical structure near galaxy Messier 94, believed to be a primordial “failed galaxy” that never formed stars due to insufficient gas. 科学家将它归类为“再离子化限制的H I云”(RELHIC),这是早期宇宙罕见的遗迹,对暗物质和银河系形成提供了新的洞察力。 Scientists classify it as a Reionization-Limited H I Cloud (RELHIC), a rare relic from the early universe offering new insights into dark matter and galaxy formation.