£5bn... and the rest!
Stick a 1 on the front to get it developed (Galileo being 3x its original budget or thereabouts)
Then turn the 1 into a 2 (or 3... 4... more...) to develop some kind of platform to launch it from, given that NASA, ESA, and the Russians will have us by the proverbial short & curlies...
Biting the hand that feeds IT
