The exhibition at the Museu de la Ciència – Cosmocaixa explores one of humanity's greatest questions: is there life beyond Earth? Divided into five sections, it first situates our place in the cosmos, presents the historical and philosophical debate around the uniqueness or abundance of life, shows how art, cinema and literature have imagined alien beings, features scientific evidence such as exoplanets and terrestrial extremophiles, and showcases current technologies (like rovers and radio telescopes). With interactives, models, replicas, real artefacts and audiovisuals, the journey ends with a sensory immersion into possible futures in the event of discovering extraterrestrial life.