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| | NASA - New Clues Found in Ongoing Mystery of Giant Galactic Blobs |
 | | Visible light images like the one shown on the left reveal the vast extent of blobs, but don't provide much information about their host galaxies. |
 | | Using its heat-seeking infrared eyes, Spitzer reveals three monstrously bright galaxies, trillions of times brighter than the Sun, in the process of merging together. |
 | | "It is possible that extremely bright galactic mergers lie at the center of all the mysterious blobs, but we still don't know how they fuel the blobs themselves," said Dr. Harry Teplitz, Spitzer Science Center, California Institute of Technology, Pasadena, Calif., co- author of the new research. |
| www.nasa.gov /vision/universe/starsgalaxies/spitzer-011105.html (742 words) |
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