Beneath that is a selection of intriguing sights within the mosaic, labeled A through E: A: Star clusters in Andromeda, foreground stars in our MilkyWaygalaxy, and two background galaxies ...
For humans, the most important star in the universe is our Sun. The second-most important star is nestled inside the Andromeda galaxy. Don't go looking for it -- the flickering star is 2.2 million ...