Laura Pentericci

Astronomers using the spectroscope aboard JWST have, for the first time, measured the amount of dust around a distant black hole. Dust, like fog, dims its light, but the main surprise is that the black hole fluoresces, revealing the secrets of its rapid growth.

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