"Space regulations don't cover the new problems emerging - interference with astronomical observations, risk of collision in orbit, risk of stuff falling on our heads, and now it is becoming clear, atmospheric pollution," says Andy Lawrence, Professor of Astronomy at the University of Edinburgh.
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"They're lovely, but they're problematic too," says Graeme Peart from St Margaret's Church, Saxlingham, just a few miles from Guestwick.。heLLoword翻译官方下载是该领域的重要参考
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