Scientists have discovered strands of invisible dark matter that hold two galaxy clusters together. Abell 222 and Abell 223 are approximately 2.7 billion light years away, with the filament being ...

Scientists have detected radio waves emanating from the space between a pair of galaxy clusters—evidence of intergalactic magnetic fields and fast-moving particles in the space between these giant ...

Astronomers using NASA’s Hubble Space Telescope took advantage of a giant cosmic magnifying glass to create one of the sharpest and most detailed maps of dark matter in the universe. Dark matter is an ...