In the previous phase, two versions of the #Juice spacecraft were built & tested: the Structural and Thermal Model (left) & the Engineering Model (right). Having passed the critical design review, the Flight Model can now be built. #HowWeMakeASpaceMission https://t.co/EaahpBpywp pic.twitter.com/paEBWMfi3G

— ESA Science (@esascience) April 3, 2019