Residents of Oshkosh, Wisconsin, might have been forgiven for thinking there was some close formation flying going on above their heads yesterday. It was actually WhiteKnightTwo, the launch craft for Richard Branson's commercial space venture, being unveiled to the public...

Zero to 60? Try zero to 600. If you think a ride up into orbit would be intense, aborting one would be even more so. That's because NASA is making sure that its Orion crew module, which would blast off...