The cluster holds around 2,000 stars, most of which are far younger than our sun and are therefore more active. Many of the dots of color are created by these young, hot stars which give off large amounts of radiations that causes the dust around them to glow brightly. You can find a huge version of the image here , which allows you to zoom in and see the many details captured in this remarkable data. “The picture was taken with ESO’s Visible and Infrared Survey Telescope for Ast
