it's just a trade delegation from Ursa Minor. They are coming to pick up a consignment of recycled cardboard from Mexico City. Apparently it's a delicacy for them. They're some kind of Termite / Wasp type communal insect origin.
They are also quite fond of anything sweet. This time, it will be Jean Claude Juncker's privilege to present them with a few vats of EU blended honey, which they get very excited about. They generally return the gift with very advanced equations, (which nobody can work out) and some blueprints for various nanotech products. Of course, ones which we have no idea to fabricate. But we humour them anyway, because they are 8 foot tall with a shiny black exoskeleton and bright red eyes.
They generally cloak up off the dark side of the moon where they are welcomed by Senior Officers (representatives of The International Space Outpost Corps). After the routine diplomatic welcome they send down some smaller craft for pickup and delivery. I say small, they would dwarf a USS Destroyer class ship, except their million ton ships can hover 3 inches off the floor effortlessly.
Comment of the century!
sci-fi innit bruv :)