Biến vệ tinh thành cảnh sát giao thông trên vũ trụ
Mỹ đang tập trung chế tạo các vệ tinh siêu nhỏ đóng vai trò cảnh sát vũ trụ, giống như cảnh sát giao thông trên vũ trụ, giúp cho các vệ tinh không va chạm với nhau và còn làm nhiệm vụ dọn rác vũ trụ.
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