Wallpaper: Dwarf Galaxy NGC 4449

Image 28 of 92
Dwarf Galaxy NGC 4449

About This Image

An interaction or merger with another galaxy probably triggered the rapid star formation in this small galaxy. The unusually explosive and intense star star-formation activity is called a starburst.

Credit: NASA, ESA, A. Aloisi (STScI/ESA), and The Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration

Learn more in NewsCenter HubbleSite's NewsCenter is the place to find the story behind this image, along with its original news release and all related images.