Going underwater to go to #Mars with @Explornaut #ThrowbackThursday https://t.co/NqyXoTZOlt
— ESA (@esa) February 9, 2017
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Going underwater to go to #Mars with @Explornaut #ThrowbackThursday https://t.co/NqyXoTZOlt
— ESA (@esa) February 9, 2017