A new study has uncovered an astonishing pair: two supermassive black holes, separated by a mere 100 parsecs (or 326 light years). In the grand scheme of space, this is quite close. The discovery was made in galaxy MCG-03-34-64, 800 million light years away. And the finding is surprising because of how close the two black holes are. Most dual black holes are either much farther apart or challenging to detect because they’re often obscured by dust and gas in late-stage mergers. “We were not expecting to see something like this,” said Anna Trindade Falcão of the Center for Astrophysics, Harvard …