The paper about the MOSAiC expedition: "Overview of the MOSAiC expedition: Ecosystem", on which Ellen, Ovidiu and Oliver had collaborated, was published. The MOSAiC expedition was a year-long study of the Arctic climate system. It aimed to understand the complex interactions between the atmosphere, sea ice, ocean, and marine life. Researchers collected data on a wide range of biological processes, from biodiversity and biogeochemical cycles to specific habitats and organisms. The expedition provided valuable insights into Arctic ecosystems and their sensitivity to climate change.