Space / 2013-10-31
Galaxies Grow from Inside Out
NASA's image library records Galaxies Grow from Inside Out.
Evidence from NASA Wide-field Infrared Survey Explorer and Galaxy Evolution Explorer missions provide support for the inside-out theory of galaxy evolution, which holds that star formation starts at the core of the galaxy and spreads outward.
A CLOSER LOOK
Evidence from NASA Wide-field Infrared Survey Explorer and Galaxy Evolution Explorer missions provide support for the inside-out theory of galaxy evolution, which holds that star formation starts at the core of the galaxy and spreads outward.
Explore NASA's original image record for credits and available downloads.
FOLLOW THE EVIDENCE
NASA Image and Video LibraryGalaxies Grow from Inside OutOriginal explanation based on the sources above. Images carry their own reuse terms.