belly button
n.— «We also have reach-back capability when we go to the field, since we’re the space belly button for whoever’s in the field—reach back to the SOC as it stands up and other space units.» —“Defense Department Spokesman Gives Briefing On Space Operations Speakers” by Keith Balts in Defense Department Political Transcripts by Federal Document Clearing House Feb. 17, 1998. (source: Double-Tongued Dictionary)
Further reading
Need a book to lift you out of this world? Try Orbital (Bookshop|Amazon). In it, Booker-winning novelist Samantha Harvey imagines the moment-to-moment experience of living on a space station, a mixture of the mundane and the majestic, 250 miles...
Matt from Waukesha, Wisconsin, has been discussing the words barely and nearly with his 10-year-old son Simon. They know the two words are nearly alike, but how exactly? This is part of a complete episode. Transcript of “Barely and Nearly” You’re...