Eric Walker added Scientists Discovered a Gigantic Structure in a Hidden Zone of Space to South Pole Wall

Eric Walker added Beyond the Milky Way, a Galactic Wall - The New York Times to Dark matter and energy, Milky Way and South Pole Wall

Eric Walker added Scientists Discovered a Gigantic Structure in a Hidden Zone of Space and Beyond the Milky Way, a Galactic Wall - The New York Times to South Pole Wall, and added South Pole Wall to Outer space

Eric Walker added a number of topics and a number of links to Outer space, and added Outer space to Nature