关于这张图
NASA image release January 13, 2011 <b><a href="http://www.flickr.com/photos/gsfc/5352962836">These images</a></b> by NASA's Hubble Space Telescope show off two dramatically different face-on views of the spiral galaxy M51, dubbed the Whirlpool Galaxy. <b><a href="http://www.flickr.com/photos/gsfc/5352955200/">The image here,</a></b> taken in visible light, highlights the attributes of a typical spiral galaxy, including graceful, curving arms, pink star-forming regions, and brilliant blue strands of star clusters. <b>In the image above,</b> most of the starlight has been removed, revealing …
