Jakob M. Helton

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.

Near the galaxy GN-z11, seen just 400 million years after the Big Bang, the James Webb Space Telescope spotted a bright spot. It glows with hot helium — such radiation can only come from very massive stars devoid of heavy elements, that is, the first generation. If confirmed, we are seeing for the f