Did Scientists Just Find the First Stars? A Troubling Cosmic Clue Emerges

Born in Lorraine on a freezing winter night, storytelling has always inspired me, first through my grandmother's tales and later Stephen King's imagination. A physicist turned science communicator, I've collaborated with institutions like CEA, Total, Engie, and Futura. Today, I focus on unraveling Earth's complex environmental and energy challenges, blending science with storytelling to illuminate solutions.

Did Scientists Just Find the First Stars? A Troubling Cosmic Clue Emerges. Pushing the Limits: JWST Looks Back 13 Billion Years The James Webb Space Telescope has done it again with another headline-worthy discovery. At the heart of one of the oldest known galaxies, scientists have detected a mysterious signal that could reveal the presence of the Universe’s very first stars. With Webb, astronomers aren’t just gazing at distant specks through a telescope—they’re basically time traveling. This latest adventure takes us over 13 billion years into the past, plunging into the coldly named galaxy GN-z11, one of the brightest galaxies from the dawn of time. Why GN-z11? Because two years ago, astronomers spotted an unusual signal here. Only now, thanks to the unprecedented precision of JWST’s Near Infrared Spectrograph (NIRSpec-IFU), have they t...