In the third week of June 2021, the JUICE team in collaboration with the ESA / ETS team tested the switching on of the Solar Simulator, part of the Large Space Simulator (LSS). After this was successfully done, the LSS was closed, sealed, and the pump-down to vacuum was started.

Lightcurve Films for ESA
GoPro footage by ESA Communication
Original music by Ilse de Ziah and Ian Date