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Andrea Ferrara

2 articles · 30 co-authors · latest: 2026-03-20

Red Dots in Space Turned Out to Be Growing Black Holes

Data from the James Webb Telescope showed: mysterious red dots in the early universe are growing black holes. They emerged directly from gas clouds, without forming stars, and are now devouring matter at an incredible rate. This explains how supermassive black holes managed to grow so quickly.
arXiv:2601.14368 · 2026-01-20

Light from the Universe’s First Stars Captured

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
arXiv:2603.20362 · 2026-03-20