The introduction raises concerns about the safety of space travel and presents the writer's opinion regarding astronauts traveling to Mars in response to those concerns.
Space travel can be a controversial topic, with some arguing its risks outweigh the benefits. In the introduction provided, the audience is hooked through a statement questioning the safety of space travel for humans. The thesis statement presents the writer's opinion that astronauts should not travel to Mars due to the harm space exploration can cause to human health.
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