William Shatner – aka Captain James Tiberius Kirk (also the porky lawyer from Boston Legal, depending on your age) – has been communicating with a Canadian astronaut stationed on the International Space Station.
Chris Hadfield, currently on board the ISS as a flight engineer and due to take over as mission commander after the current crew leaves in March, got a tweet from Shatner asking "@Cmdr_Hadfield Are you tweeting from space? MBB." (MBB stands for "My best, Bill", in case you're wondering.)
Hadfield's reply shows a more than casual interest in the tales of a younger Kirk and his fictional exploits across the universe:
@williamshatner Yes, Standard Orbit, Captain. And we're detecting signs of life on the surface.
— Chris Hadfield (@Cmdr_Hadfield) January 3, 2013