Should governments abandon plans to explore Mars and spend that money on problems on Earth?, Should astronauts keep their nerve and continue a mission even when their lives are in serious danger?, Should humanity prepare for the worst and create colonies on other planets in case Earth becomes uninhabitable?, Should countries set a goal to establish a permanent human colony on Mars?, Should ordinary people step up to the challenge and volunteer for dangerous one-way missions to Mars?, Should the United States take the lead in space exploration, or should all countries have equal responsibility?, Could colonizing another planet turn the situation around if climate change makes life on Earth extremely difficult?, Should astronauts be trained to handle difficult situations without communicating with Earth?, Should scientists abandon a plan if a space mission becomes much more expensive than expected?, Should humanity expect the worst when searching for intelligent extraterrestrial life?, Should we set a goal to contact intelligent aliens if we discover evidence that they exist?, Should astronauts keep their nerve and approach an unknown spacecraft if they encounter one?, Should private companies be allowed to take the lead in space exploration instead of governments?, Should humans step up to the challenge of living permanently on the Moon, even if the risks are extremely high?, Could space technology turn a situation around and help solve environmental problems on Earth?, Should astronauts abandon a plan to return to Earth if staying in space could produce an important scientific discovery?, How should world leaders handle a difficult situation if scientists discover an asteroid heading toward Earth?, Should governments prepare for the worst by building systems to protect Earth from asteroids?, Should humanity set a goal to become a multi-planetary species before 2100?, If Earth were in serious danger, which country should take the lead in deciding humanity’s future in space?

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