Westerlund 2 is a giant cluster of about 3000 stars located 20 000 light-years away in the constellation Carina.
Hubble's near-infrared imaging camera pierces through the dusty veil enshrouding the stellar nursery, giving astronomers a clear view of the dense concentration of stars in the central cluster.
Image Credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), A. Nota (ESA/STScI), and the Westerlund 2 Science Team
Explanation from: https://www.spacetelescope.org/images/heic1509c/
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