How a tiny piece of orbital debris exposed a major safety risk in China’s Shenzhou mission

China's Shenzhou-20 mission faced a critical delay when a small crack appeared in the return capsule's window. This damage, caused by fast-moving space debris, threatened the astronauts' safety. An emergency mission launched a replacement spacecraft, ensuring a safe return. The incident underscores the significant risks posed by even microscopic space junk and prompts a review of orbital safety measures.