The_Hitchhikers_Guide_to_Tweetups_v1_EN access_time 15/04/2014 chat_bubble_outline 0 comments The_Hitchhikers_Guide_to_Tweetups_v1_EN Written byDaniel Daniel Scuka is Senior Editor for Spacecraft Operations at ESOC, ESA's European Space Operations Centre, Darmstadt, Germany. access_time 15 April 2014 chat_bubble_outline 0 comments format_list_bulleted Discussion: no comments Leave a Reply Cancel reply Your email address will not be published. All fields are mandatory. Notify me of new posts by email. Comment moderation is enabled. Your comment may take some time to appear.