Cluster and Starforming Region Westerlund 2 . ... Credit Copyright: NASA , ESA , the Hubble Heritage Team . STScI / AURA ), A. Nota (ESA/STScI), and the Westerlund 2 Science Team Explanation: Located 20,000 light-years away in the constellation Carina, the young cluster and starforming region Westerlund 2 fills this cosmic scene . ... But brighter blue stars scattered around are likely not in the Westerlund 2 cluster and instead lie in the foreground of the Hubble anniversary field of view . ...