In this Science Case, students will learn about the Interstellar Medium (ISM) using images from ground-based telescopes and space missions.  They will have to visualise different regions in the sky and analyse how those regions are affected by the presence of gas and dust.

Students make use of the ESASky tool to inspect the regions from a list as observed in different wavelength ranges. They are asked to discuss the features observed in the images and the reasons for the differences between the different images from the same region. Then, the door is open for students to continue exploring on their own.

ESASky is a science-driven discovery portal providing access to the full sky as observed by space astronomy missions from ESA and other agencies, very visual and easy to use, and that requires no previous knowledge of the mission or data.