The company behind America's latest mission to soft-land on the Moon is battling to save the project. Pittsburgh-based Astrobotic says its Peregrine spacecraft has a faulty propulsion system, which, unless fixed, will prevent a lunar touch-down. The problem has already made it difficult for the craft to point its solar panels at the Sun to generate electricity. Astrobotic is already talking about changing its mission goals. The 1.2-tonne lander was launched early on Monday from Cape Canaveral, Florida, on a Vulcan rocket. It is aiming to become the first American mission in half a century to make a controlled landing...