![Four galaxy clusters colliding](https://science.nasa.gov/wp-content/uploads/2023/04/hubble_friday_03182016-jpg.webp?w=4096&format=png)
MACS J0717
MACS J0717 is located about 5.4 billion light-years away from Earth, in the constellation of Auriga (The Charioteer). It is one of the most complex galaxy clusters known; rather than being a single cluster, it is actually the result of four galaxy clusters colliding.
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