"This is a really new birthplace of stars," Jennifer Wiseman, senior project scientist for the Hubble Space Telescope, said of the new image, which shows a cluster of 3,000 stars known as Westerlund 2 in the constellation Carina. "The cluster is only about two million years old, which in stellar terms is very young. And it contains some of the galaxy’s hottest, brightest and most massive stars that we know of."