Unverified50% confidenceFactExact time
以LEO典型7.8km/s轨道速度，即便1cm大小碎片的撞击动能已相当于一颗手榴弹爆炸能量
1
Sources
50%
Confidence
Long-term
Relevance
7/7/2026
First Seen
Sources
Space Balls Falling to Earth: How Rocket Debris Containing Toxic Hydrazine Fuel Threatens Ground Safety
hackernewshackernews7/5/2026
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