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Planetary roboticist @NASA JPL. Father of princess and munchkin. Opinions my own. NASA JPL技術者。東京弁の阪神ファン。副業作家。ミーちゃんとユーちゃんのパパ。児童書『 #宇宙の話をしよう 』 https://t.co/3c1IM1rtb1