James Webb directly measures black hole mass in early universe, suggests formation before host galaxy (xataka.com)

• Direct mass measurement: the black hole in Abell 2744-QSO1 is 50 million solar masses.
• The black hole is two-thirds as massive as its entire host galaxy.
• Gas is almost exclusively hydrogen and helium, suggesting formation before the galaxy.
• Likely formed via direct collapse within the first second after the Big Bang.
• First direct mass determination of a black hole in the early universe.

"The James Webb Space Telescope used its Integral Field Unit (IFU) on the Near-Infrared Spectrograph to directly measure the mass of a black hole in the tiny galaxy Abell 2744-QSO1. The black hole has a mass of 50 million solar masses—two-thirds the mass of its host galaxy. The gas is composed mainly of hydrogen and helium with metallicity less than 0.5% of the Sun. This implies the black hole formed via direct collapse, possibly within the first second after the Big Bang, before its galaxy."