The risks to health and human survival are unknown. Jonathan told CNN that if his daughter was up for the trip, he'd sign up for a one-way ticket to Mars. Scott Kelly held the American record for the longest space mission at 340 days. Some people like Ann were less into the idea of living in space.
NASA just launched the Artemis program, a series of missions that will eventually take humans back to the moon, and beyond. But can humans actually survive in space long-term?
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