Hundreds of clusters of galaxies are streaming en masse towards a region at the edge of the visible universe. The discovery has taken astronomers completely by surprise because the movement is independent of the universe's expansion.
“Some are speeding away at about 1000 kilometres per second,”"This motion extends all the way to at least a billion light years, and perhaps longer," “The Bullet Cluster of galaxies, which lies 3.8 billion light-years away,”
3.8 billion light-years away