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One of the key goals is to explore the Moon's south pole, where scientists believe there may be frozen water in permanently shadowed craters (坑). This water could be used for drinking, growing food, and even producing rocket fuel. Additionally, the lunar surface offers a unique environment for testing technologies needed for future missions to Mars and beyond. The low gravity (重力) — and lack of atmosphere make it an ideal place to test new spacecraft, life support systems, and radiation shielding.

Critics argue that the cost of such programs is too high, with billions of dollars spent on space exploration while many issues on Earth remain unsolved. However, supporters point out that space research has led to numerous technological advancements that benefit daily life, such as GPS, medical imaging, and improved water purification systems. They also believe that expanding humanity's presence in space is essential for the long-term survival of our species.

Marcos, who was studying sports science at the University of São Paulo, was heartbroken. For the first several days, he lay in the hospital bed and thought about how to deal with the rest of his life. In the end, he chose not to give in. With the support of his family and coaches, he began a long and hard process. Every day, he received physical treatment, relearning basic movements. "It was the darkest time of my life," he said.

Slowly, Marcos made progress. He found adaptive cycling, which uses specially designed bikes for disabled (残疾的) athletes. With a newfound hope, he combined his study with intense training on his adapted bike. His professors encouraged him, providing flexible study schedules so he could focus on recovery and training.

There were days when pain made training unbearable, and self-doubt threatened to beat him. But he pushed through, inspired by his love for the sport.

Coach Oliveira, who had trained Marcos for years, was amazed by his performance. "Marcos proves that if you have the courage to keep going, nothing is impossible," he stated.

This year, Marcos made a remarkable comeback at the South American Adaptive Cycling Championships. Though he didn't win, his presence on track was a victory in itself. "I'm hack the bike, that's all that matter. If my story can give hope to others facing similar problems, that would mean everything," Marcos shared.

Instant Neighborhood

Community building takes on new meaning with the creation of a neighborhood of 3D printed homes in Tabasco, Mexico, aimed at tackling global homelessness. American non-profit New Story and tech company ICON built each concrete house from start to completion in 24 hours. New Story says its aim is to provide shelter for people without homes around the world.

Nested Housing

Shamballa is the idea of Italian 3D print construction company WASP. This project uses soil and straw to build a home in days that cost only 48 Euros in materials and energy. Its round designs are based on the wasp(黄蜂)nest. Each home features a laboratory with a desktop 3D printer for making furniture, artistic objects and more.

Think Schools

African island state Madagascar is hosting one of the world's most forward-thinking school building projects. Non-profit Thinking Huts is using 3D print technology to provide schools where children have little or no access to education. Schools are built using local materials and low carbon concrete in under a week.

Concrete Steps

Researchers at the Swiss University ETH Zurich used concrete 3D printing to build the 16 metre long curved Striatus footbridge in a couple of days. The project used500 layers of concrete and53 hollow blocks, held in place by compression(压缩). This reduces materials by up to 70 percent, and the entire bridge can be pulled down and recycled.

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