This online module includes three activities: Spiral Shapes, Elliptical Slide, and Imagine Irregular. By completing these activities, students discover that galaxies come in different shapes and learn about the process used by astronomers to classify them. Additional background information is provided in the Galaxy Gossip and Galaxy Gallery sections of this module. Students may complete this activity independently or in small groups. This activity should be completed before Galaxy Games. Detailed teacher pages, identified as Teaching Tips on the activity title page, provide science background information, lesson plan ideas, related resources, and alignment with national education standards. This activity is part of the online exploration "Galaxies Galore, Games and More" available on the Amazing Space website.