After 25 years and over 10 billion US dollars, on Christmas Day 2021, the James Webb Space Telescope (JWST) was finally launched into space. With its 6.5-metre primary mirror and its tennis-court-sized sunshield, Webb had to be folded up to fit in the rocket’s fairing, only to be deployed step by step in the first two weeks of its mission. But it wasn’t long until JWST started taking pictures that left astronomers at a loss for words.
