火星上的摇滚手指
(原标题: Rock Fingers on Mars)
2022-06-20
浏览次数: 14
就在中间，那是什么？火星表面最近发现了手指状的岩石尖塔，不断揭示出新的惊喜。上个月，火星上的好奇号探测车拍摄到了这些近乎垂直的小岩石露头。尽管它们的大小和形状与小蛇相似，但对它们起源的主要解释是水流经岩石裂缝时留下的小矿物团块。这些相对致密的矿物填满裂缝后，随着周围岩石的侵蚀，它们被留下了。地球上有类似起源的著名岩石露头被称为hoodoo。美国宇航局的好奇号火星车继续在火星上的盖尔陨石坑寻找古代水的新迹象，同时也为未来的人类探索提供了重要的地质背景。探索你的宇宙：随机APOD生成器
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There, just right of center, what is that? The surface of Mars keeps revealing new surprises with the recent discovery of finger-like rock spires. The small nearly-vertical rock outcrops were imaged last month by the robotic Curiosity rover on Mars. Although similar in size and shape to small snakes, the leading explanation for their origin is as conglomerations of small minerals left by water flowing through rock crevices. After these relatively dense minerals filled the crevices, they were left behind when the surrounding rock eroded away. Famous rock outcrops on Earth with a similar origin are called hoodoos. NASA's Curiosity Rover continues to search for new signs of ancient water in Gale Crater on Mars, while also providing a geologic background important for future human exploration. Explore Your Universe: Random APOD Generator