Quote:
Perhaps if we found rare earth metals in the asteroid belt, or on the moon, though neither one seems at all likely.
The moon seems doable. The asteroid belt, not so much. That's a 3 - 6yr round trip. If it could be done robotically then perhaps.
Quote:
The longest continuous, non-stop, and unresupplied sea voyage in history was completed by American sailor Reid Stowe, who spent 1,152 days at sea. Departing on April 21, 2007, and returning on June 17, 2010, his journey, nicknamed "1,000 Days at Sea: The Mars Ocean Odyssey,"