They're big, they appear early in the history of the universe and where they come from has long been a mystery. Ever since astronomers first detected the existence of supermassive black holes at the center of most galaxies, it has been difficult to fully explain their origin.
But a recent observation with the James Webb Space Telescope (JWST) could help solve the riddle of how supermassive black holes grew so rapidly to become the early universe's goliaths.
