So galaxies that we see are a fossil record of the whole of galaxy formation.
所以我们看到的星系是整个星系形成的化石记录。
科学60秒-科学美国人 2022年4月合集
The observation caused a commotion in scientific circles, because it seemed to fly in the face of everything that astrophysicists thought they knew about galaxy formation.
Because we study the Milky Way in so much detail, it's like the Rosetta Stone of galaxy formation, that we can use to inform our understanding of galaxies.
But a few months later, in 2011, Reines went to a meeting of scientists. There, she heard astrophysicist Jillian Bellovary speak. Bellovary presented some new models of galaxy formation. These suggested that even scrawny galaxies could have hefty black holes.
The study of galaxy formation and evolution is concerned with the processes that formed a heterogeneous universe from a homogeneous beginning, the formation of the first galaxies, the way galaxies change over time, and the processes that have generated the variety of structures observed in nearby galaxies.