Jonas Enander, PhD, is a science writer and communicator with a background in cosmology and astrophysics. His previous research focused on dark matter and Einstein’s theory of general relativity. He has worked as a physics teacher at the KTH Royal Institute of Technology in Stockholm and as a science communicator at the Oskar Klein Centre, also in Stockholm, and participated in the construction of the IceCube Neutrino Observatory at the South Pole. He hosts the podcasts Spacetime Fika (in English) and Rumtiden (in Swedish).