The world was gripped by the Nasa UARS satellite that fell back to Earth last Saturday – and now there’s another that’s plummeting back from orbit. In late October or early November a Germany astronomy satellite – called ROSAT- will plunge uncontrolled back to Earth. While slightly smaller than UARS, the German satellite is expected to have more pieces survive re-entry. The German space agency estimated that it has a 1-in-2000 chance of hitting someone - higher than the 1-in-3,200 odds NASA gave for UARS. The German ROSAT satellite was launched in 1990, 'died' in 1998 and weighs two and...