NASAからの自動画像投稿 Astronaut-Educator Ricky Arnold Conducts Science on Station http://www.nasa.gov/image-feature/astronaut-educator-ricky-arnold-conducts-science-on-station
from Tumblr https://tatsuh.tumblr.com/post/173706303925
NASAからの自動画像投稿 Astronaut-Educator Ricky Arnold Conducts Science on Station http://www.nasa.gov/image-feature/astronaut-educator-ricky-arnold-conducts-science-on-station
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