A false color composite image of the Seyfert galaxy NGC 1365. Red is infrared seen by the Spitzer Space Telescope; green and blue are two X-ray colors as seen by the Chandra X-ray Observatory. Using Chandra, astronomers found that there is probably a ring of very active star formation surrounding the black hole in this galaxy. (The numbers on the edges are spatial coordinates).
Credit: NASA, Chandra, and Spitzer Low Resolution Image (jpg)