#OTD 50 years ago, 3 April 1968, the new European Space Technology and Research Centre, #ESTEC, in #Noordwijk, was inaugurated by HRHs Princess Beatrix & Prince Claus of the Netherlands #ESTEC50 https://t.co/MsEiVzY0Fc pic.twitter.com/BPG9ruWN64
— ESA space history (@ESA_History) April 3, 2018
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