马斯克卫星坠落潮引爆太空危机，3毫米碎片成轨道杀手！

Group 1 - The article highlights the growing threat of space debris, with 25,000 trackable pieces and 170 million smaller particles creating a "death net" that poses risks to human space activities [1] - The "satellite crisis" is exacerbated by Elon Musk's Starlink program, which has deployed 8,600 satellites, accounting for two-thirds of all satellites in orbit, with a significant increase in the rate of satellite re-entry [3] - Solar activity has intensified the situation, increasing the density of the upper atmosphere by over 20%, leading to a drastic reduction in the operational lifespan of Starlink satellites [3] Group 2 - A recent incident involving a 2.5 kg Starlink satellite debris landing in Canada underscores the dangers of space junk, with projections indicating a 61% annual increase in the probability of satellite debris hitting people by 2035 [5] - The destructive potential of space debris is highlighted, with small fragments traveling at high speeds capable of causing significant damage to satellites and space stations [5][7] - The development of protective technologies, such as the Atomic-6 company's space armor, aims to mitigate the risks posed by space debris, showcasing advancements in materials science [7] Group 3 - Scientists warn that a mere 1% failure rate in Starlink satellites could lead to catastrophic collisions, emphasizing the need for international cooperation in space debris management [9] - Initiatives like the European Space Agency's ClearSpace-1 mission aim to remove defunct satellites from orbit, while China's space station is enhancing its debris protection capabilities [9][11] - The article stresses the importance of addressing the root causes of space debris, with NASA estimating that investing in debris protection could yield $50 billion in returns over the next 30 years [9][11]