標準Science

The Growing Problem of Space Debris

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Today, thousands of satellites orbit the Earth, providing us with global communication and weather forecasts. However, this has created a serious problem: space . Space consists of broken pieces of old satellites, rocket parts, and other objects left in space. These items travel at extremely high speeds, making them dangerous to active satellites and the International Space Station. As the number of objects in space increases, the risk of collisions also rises. When two objects collide, they break into even smaller pieces, creating more . This could eventually make it impossible to launch new spacecraft safely. Experts warn that we must act now to clean up the orbit. Solving this problem requires international . No single country owns space, so nations must work together to create rules for managing satellite . Several companies are currently developing new technologies, such as robotic arms and nets, to capture and remove space junk. By working as a global team, we can ensure that space remains a safe and useful environment for future generations.

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What is the main idea of this passage?

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Why are small pieces of space debris dangerous?

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What does the word 'they' in the second paragraph refer to?

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