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Green-hot galaxies reveal clues to the ancient universe
Galaxies that emit a green glow make bitchin' screen-savers, but they're exceedingly rare in the actual universe. However, UCLA astronomers recently discovered that most, if not all early galaxies had a green hue due to their intense heat and special chemistry. "The discovery that young galaxies are so unexpectedly bright [with green light] ... will dramatically change and improve the way that we study galaxy formation throughout the history of the universe," said UCLA physics Professor Matthew Malkan in a statement.
Scientists discover a cosmic-scale particle accelerator
Suddenly, even the Large Hadron Collider seems downright quaint. Researchers have found a combination of cosmic phenomena that's creating the universe's largest known particle accelerator. At least one supermassive black hole in a galaxy cluster has created a electromagnetic tunnel that's accelerating gas to high speeds, only for the gas to travel even faster as it interacts with shock waves from another cluster colliding with the first. The result is particles traveling at a significant portion of the speed of light -- no mean feat for anything that isn't, well, light.
