標準Science

The Growing Problem of Space Debris

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Today, thousands of satellites orbit the , providing us with 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 high speeds, making them dangerous to satellites and the International Space Station. As the number of objects in space increases, the of collisions also rises. When two objects collide, they break into even smaller pieces, creating more . This could make it to new spacecraft safely. Experts 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 rules for managing . Several companies are developing new technologies, such as robotic arms and nets, to capture and space junk. By working as a team, we can that space remains a safe and for future generations.

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What is the main idea of this passage?

Q2detail

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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