Billionaires pay a fortune for the ultimate thrill mere mortals can only dream of: $250,000 for a dive to the Titanic, $45,000 to skydive over the Himalayas, and $450,000 for a space flight. The Titan mission ended fatally, but what are the guarantees of a safe trip to space? “At the moment, the participants are basically guinea pigs, they do it at their own risk,” said Frans von der Dunk, professor of Space Law at the University of Nebraska.
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