Why do aliens not visit the restaurant in space? Because it has got no atmosphere.
On the fateful day, september 15th, 2122 the Esher space telscope sited an alien vessel orbiting the ice moon io and in the following hours the united space federation organized a greeting party and sent out the vessels and to meet them. The vessels carried all of earths most delicious food in a effort to impress the aliens with the fine taste of our cuisine. They were so impressed that they shared there most delicious meals as well. Today we served those meals at all of our locations across the solar system.