Up until very recently, mythological tales predominated in the explanation of the polar auroras. Today, we understand that the polar lights are a phenomenon brought on by the solar winds' interaction with the magnetosphere of the Earth leading to precipitation of energetic particles on the topside ionised atmosphere. However, for a long time, this phenomenon inspired vibrant trans-border stories with a profound impact on local communities. In our interactive installation, Mytherrella, we aimed to create a dynamic environment in which scientific data and mythological storytelling unearth new imaginaries about the aurora borealis. The generative video integrated in the installation uses a custom real-time StyleGAN algorithm that continuously samples from a model trained on a large set of all-sky auroral images acquired in Kiruna, Sweden. This method enables live interaction with the generated video, producing novel synthetic auroral formations that are unpredictable while remaining within the bounds of the learned features. By combining the dataset with a relatively small number of alternative-style images, the diversity of the generated content is increased, creating a divergent effect that reinforces the mythological narrative. We share the technique of interactive video generation as well as the research process behind the creation of the work.

publication ISEA 2023