![We found some strange radio sources in a distant galaxy cluster. They're making us rethink what we thought we knew. We found some strange radio sources in a distant galaxy cluster. They're making us rethink what we thought we knew.](https://images.theconversation.com/files/475823/original/file-20220725-24-3t22af.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1200&h=1200.0&fit=crop)
We found some strange radio sources in a distant galaxy cluster. They're making us rethink what we thought we knew.
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