What happened this month at the European Space Agency? (September 2026)

September was a month of milestones and discoveries. FLEX launched aboard Vega-C alongside Sentinel-3C. Sophie Adenot completed her third and final spacewalk, leading the mission as EV-1. BepiColombo separated from its Mercury Transfer Module, taking another step towards Mercury. Spectrum became the first rocket to reach orbit from continental Europe. And the James Webb Space Telescope found tiny brown dwarfs that could harbor the building blocks of planets.