SpaceUp close with the awesome power of NASA's biggest ever rocket NASA's new rocket booster has just passed its final ground test before its maiden flight. But will it ever make it into deep space, asks Mika McKinnon 51¶¯Âþ
PhysicsYou can touch the heart of physics without doing the hard bitsCarlo Rovelli reflects on why time is fundamentally human, and how physics is like music – you don't have to be able to create it to appreciate it Features