1. Department of Teacher Education and School Research, University of Oslo, Oslo, Norway
2. Department of Science Education, University of Copenhagen, Copenhagen, Denmark
3. The Australian Research Council Centre of Excellence for Gravitational Wave Discovery OzGrav, Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, Australia
4. The Australian Research Council Centre of Excellence for Dark Matter Particle Physics, School of Physics, The University of Melbourne, Melbourne, Australia
5. Department of Primary and Secondary Teacher Education, Oslo Metropolitan University, Oslo, Norway