Astronomers discover active black holes and mature galaxy clusters

Astronomers have utilized gravitational lensing to observe two active supermassive black holes in the early universe. By studying the system MG B2016+112, which dates back to when the universe was approximately 2 billion years old, researchers used the MUSE instrument on the European Southern Observatory’s Very Large Telescope to analyze light spectra. The gravitational lens from a foreground galaxy split the light into three images; while images A and B were consistent, image C revealed a distinct signature of a second active supermassive black hole separated by about 570 light-years.

In a separate finding, observations from the James Webb Space Telescope have identified a massive galaxy cluster, XLSSC 122, located 10.4 billion light-years away. The cluster shows an unexpectedly high concentration of mass and structural development for its age. According to cosmological models, structures of this magnitude should develop more slowly, yet XLSSC 122 appears to have formed much earlier than anticipated, appearing highly organized when the universe was only 3.4 billion years old.