Godspeed (or naturespeed for atheists)! Starship is my only hope for ever being able to go to space (assuming that they can bring the costs down).
One might say... lightspeed? :)
I'm not religious and still use 'godspeed', 'goddamnit', 'Jesus (opt. "fuckin' | "Herbert Walker") Christ'... just feels right, ya know
Pretty sure that's frowned upon if you do happen to be religious. Same though.