The European Space Agency (ESA) has opened online registration for the international conference on big data from space, Big Data from Space 2025 (BiDS 2025). This large-scale event will take place for the first time in the Baltic Sea region, in Riga, from 29 September to 3 October. The conference will offer a broad and diverse programme, bringing together leading experts, researchers, and policymakers to discuss the use of satellite data in science, innovation, and the development of solutions that matter to society.