Tại sao các vì sao nhấp nháy?
Các ngôi sao trên bầu trời nhấp nháy là bởi ánh sáng của chúng phải xuyên qua bầu khí quyển bảo vệ trái đất, vốn luôn biến động về nhiệt độ và mật độ.
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