Chandra Release - June 6, 2024 Visual Description: Westerlund 1 This is an image of the Westerlund 1 star cluster and the surrounding region, as detected in X-ray and optical light. The black canvas of space is peppered with colored dots of light of various sizes, mostly in shades of red, green, blue, and white. At the center of the image is a semi-transparent, red and yellow cloud of gas encircling a grouping of tightly packed gold stars. The shape and distribution of stars in the cluster call to mind effervescent soda bubbles dancing above the ice cubes of a recently poured beverage.