This infrared image, from NASA Spitzer Space Telescope, of M100 is a classic example of a grand design spiral galaxy, with prominent and well-defined spiral arms winding from the hot center, out to the cooler edges of the galaxy.
This infrared image, from NASA Spitzer Space Telescope, of M100 is a classic example of a grand design spiral galaxy, with prominent and well-defined spiral arms winding from the hot center, out to the cooler edges of the galaxy.