Galactic collision creates huge particle collider
Jet shoots out of crash among four galaxy clusters
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/06/cc_MACSJ0717_nrao_0.jpg?fit=860%2C460&ssl=1)
CLUSTER COLLISION As four galaxy clusters collide, gas (blue) heated to many millions of degrees Celsius fills the space between galaxies. Charged particles move near the speed of light along a jet (red, center) that is 2.5 million light-years long. The image is a composite of data from the Very Large Array, Chandra X-Ray Observatory and Hubble Space Telescope.
Van Weeren et al., Bill Saxton/NRAO/AUI/NSF, NASA