New Tumblr post: “teokure: スペース・バルーン、高高度気球による成層圏飛行実験に成功。宇宙撮影サービスを開始 なお、実施された高高度気球によ…” https://t.co/NGvQZHI25V



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June 14, 2021 at 04:31PM
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