The Orion Nebula, the Pleiades and the Hyades open clusters could represent the different phases of star clusters: baby, adolescent and elderly.

These 3 popular skywatching star clusters may be branches of the same family tree

Source: space
Source Link: https://www.space.com/astronomy/these-3-popular-skywatching-star-clusters-may-be-branches-of-the-same-family-tree