Galaxies come in many different shapes. https://space-facts.com/galaxies/types/ The Pinwheel Galaxy is a spiral-shaped galaxy that is 21 million light years away from Earth.
Activity
https://spaceplace.nasa.gov/pinwheel-galaxy/en/PinwheelGalaxy.pdf
To earn credit for this activity, upload a video of you explaining the different types of galaxies and having fun with your pinwheel.