Article’s key point: Astronomers have been able to determine the « family tree » of the Milky Way galaxy by studying the movement and distribution of globular clusters (groups of stars that orbit around the galaxy). These studies have allowed them to identify several distinct groups of clusters, each of which is believed to have formed during a different galactic merger event. This research is helping scientists better understand the formation and evolution of the Milky Way.
Answer to your question:
The family tree of the Milky Way galaxy is being constructed by studying the movement and distribution of globular clusters, which have allowed astronomers to identify several distinct groups of clusters formed during different galactic merger events. This research helps to understand the formation and evolution of the Milky Way.