Eliot Quataert

In the Andromeda galaxy, a star faded away without a flash. James Webb and the Chandra telescope saw a dim object in a dust cocoon. This proves that a black hole can be born in the quiet collapse of a star, not just in the fire of a supernova.

The James Webb Telescope discovered that the mysterious red dots are not hot disks around black holes, but dense clouds of water vapor with temperatures around 2000–4000 °C. This reduced the mass estimates of black holes by an order of magnitude.