ESTEC #OpenDay2017 heads-up: first special VIP guests confirmed – European astronauts Dumitru Prunariu of Romania, Ulf Merbold and Ernst Messerschmid of Germany, Dirk Frimout of Belgium, ClAudie Haigneré of France and André Kuipers of the Netherlands. Plus more still to be confirmed. Watch this space for registration details coming soon. See http://www.esa.int/About_Us/ESTEC
