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The dark side of the universe | Science News for Students
The ghostly blue clouds in the center of the Abell 1689 galaxy cluster show where Dan Coe and his team think dark matter is hiding. Abell 1689 is home to about 1,000 galaxies and trillions of stars. NASA, ESA, and Dan Coe (NASA JPL/Caltech and STScI) If seeing is believing, then we shouldn’t believe in …