The European Space Agency (ESA) have officially approved two space missions, LISA and EnVision, for launch in the 2030’s. LISA will search for gravitational waves whilst EnVision will study the interior and atmosphere of Venus. Both missions have contributions from NASA. The process of being formally `adopted’ by ESA can be a long drawn-out process. When I worked for UCL’s Mullard Space Science Laboratory from the mid 1990’s, I was part (in a small way) of its LISA development team. L...