关于这张图
NASA image release January 10, 2011 The Triangulum, located nearly 3 million light years from Earth, is another far galaxy where researchers have found diffuse interstellar bands (DIBs). The detailed observations needed to see DIBs along a straight line from Earth to an individual star in such a distant galaxy stretch the limits of even the largest telescopes. Credit: NASA/Swift Science Team/Stefan Immler To read more go to: <a href="http://www.nasa.gov/topics/universe/features/molecule-fingerprints.html" rel="nofollow">www.nasa.gov/topics/universe/features/molecule-fingerprin...</a> <b><a …