This document provides a template for designing a CLIL (Content and Language Integrated Learning) didactic unit on the topic of space and astronomy. The unit is aimed at 4th year students and integrates the subjects of science, literacy, and arts. It outlines learning outcomes, content objectives, language goals, activities, methodology and evaluation. The final task challenges students to prepare a report and interview about Earth for alien visitors. A variety of hands-on activities are designed to help students achieve the unit's goals, including creating models, videos, games and presentations about concepts like the solar system, day/night, seasons and phases of the moon.