Juice moves into Large Space Simulator


The Jupiter Icy Moons Explorer, Juice, in the cleanroom at ESTEC, in May 2021. Juice will make detailed observations of Jupiter and its three large ocean-bearing moons – Ganymede, Callisto and Europa – with a suite of remote sensing, geophysical and in situ instruments. The mission will investigate the emergence of habitable worlds around gas giants and the Jupiter system as an archetype for the numerous giant exoplanets now known to orbit other stars. Credit: ESA
The Jupiter Icy Moons Explorer, Juice, in the cleanroom at ESTEC, in May 2021. Juice will make detailed observations of Jupiter and its three large ocean-bearing moons – Ganymede, Callisto and Europa – with a suite of remote sensing, geophysical and in situ instruments. The mission will investigate the emergence of habitable worlds around gas giants and the Jupiter system as an archetype for the numerous giant exoplanets now known to orbit other stars. Credit: ESA
 

The Jupiter Icy Moons Explorer has moved into the Large Space Simulator at ESA's test center, ready for grueling environmental tests at a range of temperatures. Since arriving at ESA's European Space Research and Technology Center (ESTEC) in April, a number of activities have taken place ahead of the environmental testing. This included the application of multi-layered insulation, a deployment test of the medium-gain antenna, and other preparatory activities captured.


Once the door of the Large Space Simulator (LSS) is sealed, Juice will spend several weeks being subjected to extreme heating and cooling cycles under vacuum, to confirm the spacecraft is ready for its long journey through the Solar System to Jupiter. The juice will experience highs of 250ºC close to Venus and lows of around -180ºC in the Jovian system.


The LSS is Europe's single largest vacuum chamber standing 15 m high and 10 m wide.


The juice will remain at ESTEC until July, before being transported to Toulouse for its final round of tests. From there it will travel to Europe's Spaceport in French Guiana, to be launched on an Ariane 5 rocket next year.


Once in the Jovian system, the mission will make detailed observations of the giant gas planet and its three large ocean-bearing moons Ganymede, Callisto, and Europa with a suite of remote sensing, geophysical, and in situ instruments. The mission will investigate the emergence of habitable worlds around gas giants and the Jupiter system as an archetype for the numerous giant exoplanets, now known to orbit other stars.


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