NASA Looks to the Future With Eye on the Past
Some 1,000 years ago, Viking sailors became Europe's first great maritime explorers -- setting out for places unknown, not really understanding what they were finding, and often not returning home. It was a halting beginning to what later flowered when southern European powers sailed and colonized the globe and to what is now as unremarkable as a tanker of oil or a shipment of apples leaving home port for delivery halfway around the world....-
