‘Twenty-five years ago scientists still expected that planets in other solar systems would look like the ones we have in our own system. But we were in for some big surprises’, says astrophysicist Antonija Oklopčić. Oklopčić is an expert in modelling the atmospheres of planets in other solar systems, which are known as exoplanets. She has recently left her prestigious NASA fellowship at Harvard University to join the University of Amsterdam’s Anton Pannekoek Institute for Astronomy as a MacGillavry fellow.