根据给定的关键词，生成一篇文章大纲。
关键词：太空探索，人类的未来，火星
I. Introduction
- Brief discussion on the importance of space exploration to human progress
- Highlight on the role of Mars exploration in shaping humanity's future

II. The significance of space exploration
- The role of space exploration in scientific and technological advancements
- The impact of space exploration on our understanding of the universe
- The economic benefits of space exploration

III. The future of humanity
- The role of space exploration in shaping humanity's future
- How space exploration can contribute to solving some of humanity's greatest challenges
- The potential for space colonization and its impact on the future of the human race

IV. Mars Exploration
- The history of Mars exploration
- The current state of Mars exploration and research
- The potential for Mars exploration to answer some of humanity's biggest questions

V. Conclusion
- A summary of key points
- Final thoughts on the importance of space exploration and Mars exploration for humanity's future