The scientists were already investigating the problem of pollution from space debris when they realised a SpaceX Falcon 9 had failed in flight.
Not the day you're after? Here's the solution to yesterday's Strands.
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然而，当想法逐渐成长为点子——无论多么试探、多么脆弱——他都会意识到这是神圣之地。他对创作过程有深刻理解与敬畏。他明白，创作应当获得罕见的尊重——不仅是在想法很好或条件很便利的时候。。91视频对此有专业解读
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