20 年前
视频简介
NASA’s Perseverance rover is on the verge of changing humanity’s future. Just over a year after touching down on the red planet, Perseverance is embarking on the most demanding part of its mission to date – striking out at top speed for the sites most likely to house signs of life. To succeed, the team must overcome epic challenges and take Perseverance into uncharted territory...。兰州大学的科考队照例进入甘肃盐池自然保护区进行例行考察，在盐池湾，他们有了重大发现，不仅发现了野牦牛的群落，还发现了雪豹的踪迹。。
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