The exponential growth of data in the field of geoscience presents both great opportunities and challenges. Extract- ing insights from vast volumes of Earth observation data requires sophisticated analysis techniques. When these tech- niques are open, reproducible, and scalable they accelerate reusability. This paper explores Pangeo@EOSC, an innova- tive platform uniting the power of the European Open Science Cloud (EOSC) and the Pangeo ecosystem to enable open, re- producible, and scalable big data geoscience for researchers and practitioners worldwide. We discuss key components, highlighting benefits for efficient data analysis and collabo- ration. To increase take-up, Pangeo@EOSC offers a Pangeo Training Infrastructure as a Service (PTIaaS), which facil- itates the provision of Pangeo deployments to individuals interested in delivering training to researchers and students. This service enables seamless access to real-world datasets and analysis capabilities within the Pangeo environment. We conclude by discussing future prospects and potential impact of Pangeo@EOSC to advance the field of big data geoscience and promote a culture of open and collaborative research.