Quasars, the luminous beacons at the centers of distant galaxies, have puzzled astronomers for decades with their dramatic brightness variations. Recent observations suggest that these celestial ...

Using the wide-field survey capabilities of the Subaru Telescope, astronomers discovered active supermassive black holes, or quasars, in the distant universe and then studied them with the James Webb ...

"This shows how effective the approach of 'Discover with Subaru Telescope, explore with James Webb' can be." Using a powerful combination of the Subaru Telescope and the James Webb Space Telescope ...

Astronomers have discovered "dust-shrouded supermassive black holes" in the early universe, less than 1 billion years after the Big Bang—a type of object that had previously escaped detection. An ...