Three of the most popular targets for astronomers of all skill levels are the Seven Sisters (the Pleiades), the Hyades and the Orion Nebula Cluster (ONC), which is the central "star" in Orion’s Sword.
Now, scientists have discovered that these celestial bodies may have more in common than once thought. The star clusters may share a common origin mechanism, they say, despite the fact that the three clusters are all different ages and are located at different distances from Earth.
