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Seven Sisters
Featured on November 9, 2015
The Pleiades star cluster, also known as the Seven Sisters, is one of the most famous objects in the night sky. Even so, astronomers are still learning about it as they study its population, its history, its motion through space, and more. A cloud of gas and dust lines up between Earth and the cluster, creating the hazy blue glow around the stars. [NASA/ESA/AURA/Caltech/Palomar Observatory]
