LISA Pathfinder: preparing for fuelling
A technician in protective gear checks the LISA Pathfinder propulsion module prior to it being filled with propellant.
This phase of launch preparation is particularly dangerous because the propellant is toxic, and there is also a risk of explosion, so it is carried out in a dedicated building, S5B, at the Centre Spatial Guyanais in Kourou, French Guiana.
Last Update: 1 September 2019