In this new Masterclass, Dr. Nick Crisp from the University of Manchester summarises the challenges and opportunities of designing satellites for and flying them in very low Earth orbit (VLEO). A similar lecture was held by the project’s scientific coordinator,  Dr. Peter Roberts, at the beginning of the project in 2017 (https://youtu.be/_TeeG0jgG30), so it is of particular interest to watch this new Masterclass in light of the huge steps forward that the DISCOVERER team has made since then.