Four pioneering men and women splashed down into the Pacific Ocean off the coast of San Diego last night, after a 10-day, 695,081-mile journey that was out of this world. Nasa commentator Rob Navias ...

NASA insists that the dangers have been exaggerated. "The risks, when you put them in total context, are very low, and no greater on the Mir than they on any space vehicle at any moment in time," said ...