The James Webb Space Telescope has made a groundbreaking discovery by weighing a supermassive black hole located 10 billion light-years away. This achievement is significant for several reasons. Firstly, it marks the first time scientists have successfully measured the mass of a supermassive black hole at such a vast distance. The black hole, residing at the center of the galaxy MRG-M0138, is estimated to weigh 6 billion times the mass of the sun. This finding provides valuable insights into the early universe, as the galaxy is observed when the universe was just 4 billion years old. The technique used to determine the black hole's mass, known as stellar dynamics, involves tracking the motion of stars near the black hole. While this method has been employed to weigh black holes closer to Earth, such as the one in our own galaxy, Sagittarius A*, it is now being extended to the early universe. The research team, led by University College of London scientist Richard Ellis, utilized gravitational lensing to magnify the light from the distant galaxy, allowing them to study the internal details of MRG-M0138. This technique, combined with the JWST's capabilities, enabled them to measure the mass of the supermassive black hole and determine that the galaxy itself is dormant, no longer forming new stars. This discovery has important implications for understanding the relationship between galaxy growth and supermassive black hole growth, as well as the role these cosmic titans play in quenching star formation in their host galaxies. The research was published in Science, and it opens up new avenues for exploration in the field of astronomy, offering a deeper understanding of the universe's evolution and the interplay between black holes and galaxies.
