One mystery has been puzzling astronomers for a few years now; strange distant clouds of intensely glowing material located billions of light-years away. They’ve even struggled to come up with a name, and have settled for “blobs”. Using NASA’s Spitzer Space Telescope, astronomers have caught a glimpse inside the blobs, and discovered evidence that they surround multiple galaxies which could be in the process of merging together. Under visible light, these galaxies are unremarkable, but Spitzer uncovered that they’re some of the brightest galaxies in the Universe. If the blobs are created by galactic mergers, astronomers will need to figure out why they’re putting out so much material.