Nga lên kế hoạch soi sáng Trái đất bằng một Mặt trời nhân tạo
Ngôi sao sáng nhất trong trời đêm có tên Sirius, còn được biết tới với biệt danh "sao chó" hay Alpha Canis Majoris.
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