Reading - Missing Paragraphs

A Future on Mars

When people talk about colonising Mars, it can sound like science fiction: shiny cities under glass domes and families watching two sunsets from their kitchen window. Yet the idea is no longer just a dream from films. Engineers are testing rockets that can be reused, scientists are learning how the human body reacts to long missions, and space agencies are planning step-by-step. (1) .......... But inspiration alone is not enough. A Mars settlement would have to solve basic problems that we often take for granted on Earth: air, water, food, energy, and protection from radiation. The planet is cold, dry, and exposed to harmful particles from space. (2) .......... Once those essentials are possible, the next question is how people would live day to day. A small crew could not rely on constant deliveries from Earth, because supplies would take months to arrive and launches would be limited. (3) .......... Even if the technology works, the human side may be the hardest part. Living in a small habitat, far from home, with the same few people, would test anyone’s patience and mental health. (4) .......... There is also a moral question: should we spend money on Mars when Earth has serious problems? It is a fair challenge, and it deserves a serious answer. (5) .......... For that reason, many researchers argue that Mars is not an escape plan but a training ground. If we can learn to live responsibly on a harsh planet, we may learn to live more responsibly on our own. (6) .......... Colonising Mars may take decades, and it may not look like the movies. But the direction is clear: each experiment, each mission, and each failure teaches us something. And sometimes, the most inspiring journeys begin with a single, difficult step.