Starfleet? Ianto was pretty sure that he'd heard that term being tossed around at some point or another between 'hovercars' and 'I'm from the future and so much better than you', but he couldn't be certain. He had to physically tear himself away from the window to look at Sulu as he spoke.

"Starfleet..." he said. "Is that...what it sounds like it is? Some sort of. I don't know, space thing?" True, Ianto knew that a few men had been to the moon at one point or another, and that there were satellites up there somewhere, but. That's as far as he he knew, on that front.