
Astronomers analysing two decades of data from NASA's Chandra X-ray Observatory have uncovered evidence that could overturn one of modern cosmology's core assumptions: that nearly all galaxies are anchored by a supermassive black hole.
According to the new research, many small and dwarf galaxies appear to lack these central giants altogether. If confirmed, the findings would force scientists to rethink how galaxies form, evolve, and interact, with implications that stretch from star formation to future gravitational-wave missions.