Học sinh lớp 7 phát hiện hang ngầm trên sao Hỏa
Trong quá trình tham gia chương trình khám phá sao Hỏa bằng hình ảnh của Cơ quan Hàng không vũ trụ Mỹ (NASA), nhóm học sinh lớp 7 tìm thấy một hang bí ẩn trên hành tinh đỏ.
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