Wall Divides East and West Sides of Cosmic Metropolis
A new study unveils NGC 604, the largest region of star formation in the nearby galaxy M33, in its first deep, high-resolution view in X-rays. This composite image from Chandra X-ray Observatory data (colored blue), combined with optical light data from the Hubble Space Telescope (red and green), shows a divided neighborhood where some 200 hot, young, massive stars reside.
Download the desktop: http://www.chandra.harvard.edu/resources/desktops_year.html?year=2009
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