Vanguard 1 turns 50

James Oberg offere here a well-written salute to Vanguard 1. The tiny "grapefruit," one of the pioneering milestones of the Space Age, has been in orbit 50 years and, if not collected for a museum, will be there for centuries to come. Oberg and space entrepreneur Dennis Wingo discuss the possibility of a retrieval, maybe as the result of an X-Prize type challenge to reward whoever can bring the satellite back.