A team of Harvard astrophysicists discovered a supermassive black hole at the center of the Large Magellanic Cloud, the Milky Way’s closest galactic neighbor.

Astronomers may have just solved an intergalactic “whodunit.” Researchers traced the trajectories of super speedy stars all the way back to their sources—and they discovered strong evidence of a previously unknown supermassive black hole just outside our home galaxy.

Scientists have discovered an extraordinarily massive black hole weighing an astounding 36 billion solar masses, challenging our current theories of galaxy evolution.