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科学家在火星发现了能证明外星人存在的石头 | 科学美国人

新英文外刊  · 公众号  ·  · 2024-08-01 08:30

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📢  文末扫码进裙,免费领取双语精读版 This Is the Most Exciting Rock Ever Found on Mars Scientific American   Mars 26 July, 2024 | 1525 words | ★★ ★ ★ ☆ Mysterious “leopard spots” on a Martian rock could be evidence of extraterrestrial life—or of mere lifeless chemistry. Finding out the truth may require bringing the rock back to Earth In a dry river valley on Mars, NASA’s Perseverance rover may at last have found its reason for being: evidence of ancient alien life—and with it, a lifeline for the space agency’s grand but troubled plan to bring Red Planet materials to Earth. This potentially cosmos-quaking evidence may look like merely a humble rock, but it’s unlike any other seen before on Mars. Dubbed “Cheyava Falls” after a feature in Earth’s own Grand Canyon, the rock appears to be a coffee-table-sized, arrowhead-shaped outcropping of mudstone. But its most notable visual features are its reddish and whitish stripes—the former are ………………………………

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