This color composite image of nearby galaxy NGC 300 combines visible-light (red and yellow) with ultraviolet views (blue) from NASA's Galaxy Evolution Explorer (GALEX). Young hot blue stars dominate the outer spiral arms of the galaxy, while the older stars congregate in the nuclear regions which appear yellow-green.
This color composite image of nearby galaxy NGC 300 combines visible-light (red and yellow) with ultraviolet views (blue) from NASA’s Galaxy Evolution Explorer (GALEX).
Young hot blue stars dominate the outer spiral arms of the galaxy, while the older stars congregate in the nuclear regions which appear yellow-green. Gases heated by hot young stars and shocks due to winds from massive stars and supernova explosions appear in pink, as revealed by the visible-light image of the galaxy.
Located nearly 7 million light years away, NGC 300 is a member of a nearby group of galaxies known as the Sculptor Group. It is a spiral galaxy like our own Milky Way.Image Credit: NASA/JPL/Caltech/R. Hurt (SSC)+ GALEX site: http://www.galex.caltech.edu/