In a test of equipment destined for the ISS, the PK-4 plasma crystal experiment flew on 'Zero-G' during the 49th ESA Parabolic Flight Campaign. The continuation of an experiment already on the Space Station, the results of PK-4 will be of fundamental interest for the understanding of complex plasmas, but also for the physics of condensed matter (crystallisation) and fluid dynamics. Further applications might be in the field of semiconductor production and astrophysics (planetary formation).
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