上面图是一系列数码照片叠加而成的，让恒星重合，而火星貌似在天空中画了一个环。
Pictured above is a series of images digitally stacked so that all of the stars images coincide. Here, Mars appears to trace out a loop in the sky.
上面图是一系列数码照片叠加而成的，让恒星重合，而火星貌似在天空中画了一个环。
Pictured above is a series of images digitally stacked so that all of the stars images coincide. Here, Mars appears to trace out a loop in the sky.
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