As part of the transdisciplinary theme How the World Works, the Juniors 5 students delved into the scientific principles that govern the Universe and its interconnections. To enrich this inquiry, we had the pleasure of welcoming the Urânia Planetarium to our school, offering students an immersive and meaningful experience. During the sessions, pupils engaged with an astronomer who sparked their curiosity with thought-provoking questions and provided insightful answers, deepening their understanding of the Universe.This experience, fully aligned with the goals of the Unit of Inquiry, explored topics such as the Universe, constellations, Earth’s movements, the phases of the Moon, and the scientific tools that make space exploration possible. It was a unique learning opportunity that encouraged critical thinking and investigative curiosity among our students.