Engineer Giuditta Montesanti is pictured wearing protective goggles while preparing for a test firing of space thrusters in ESA’s Propulsion Laboratory. Lasers are used to align plasma-measuring probes within thruster plumes. Based at ESA’s technical centre ESTEC in Noordwijk, the Netherlands, the Propulsion Laboratory specialises in the testing of ion engines and other thrusters that operate outside Earth’s atmosphere.