This undated NASA images taken by the Chandra X-ray observatory shows the Westerlund 2 star cluster. The cluster has an an estimated age of about one or two million years and contains some of the hottest, brightest and most massive stars known. (UPI Photo/NASA)
Contributor:UPI / Alamy Stock Photo
File size:25.7 MB (283 KB Compressed download)
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Dimensions:3000 x 3000 px | 25.4 x 25.4 cm | 10 x 10 inches | 300dpi
Date taken:29 January 2008
This image could have imperfections as it’s either historical or reportage.