# NASA Unveils Celestial Fireworks as Official Hubble 25th Anniversary Image

- By: NASA, ESA, the Hubble Heritage Team (STScI/AURA), A. Nota (ESA/STScI), and the Westerlund 2 Science Team
- Date: 2015-02-24
- Classification: Photograph
- Credit line: http://hubblesite.org/newscenter/archive/releases/2015/12/image/a/warn/ (image source); see also http://www.spacetelescope.org/images/heic1509a/
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:NASA_Unveils_Celestial_Fireworks_as_Official_Hubble_25th_Anniversary_Image.jpg)
- Rights: Public domain
- Picture: https://invisiblenetwork.ai/thumbs/commons/thumb/1/13/NASA_Unveils_Celestial_Fireworks_as_Official_Hubble_25th_Anniversary_Image.jpg/1920px-NASA_Unveils_Celestial_Fireworks_as_Official_Hubble_25th_Anniversary_Image.jpg
- Who can see it: Kids profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

The star cluster Westerlund 2 in the Milky Way galaxy, with an estimated age of about one or two million years. It contains some of the hottest, brightest, and most massive stars known. The cluster resides inside a stellar breeding ground known as Gum 29, located 20,000 light-years away in the constellation Carina.