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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: Environmental assessment in the prelaunch phase of Hayabusa2 for safety declaration of returned samples from the asteroid (162173) Ryugu: background monitoring and risk management during development of the sampler system

Fig. 3

Environmental monitoring near the Hayabusa2 spacecraft. a Sampler horn. b Sample container with witness coupon inside (Sawada et al. 2017). c, d Inside the sample catcher before elimination of surface dust. e, f Microscopic observation using a wipe stick to see if any artefacts were present

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