The impact crater, which was caused by an impact even around 8 million years ago, is about 4 kilometers (2.5 miles) in diameter. The crater…
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The new research indicates that the impactor would have to be about 20 to 25 kilometers (12.4 to 15.5 miles) in size and move at…
October 8, 2021 The 50,000-year-old crater is relatively young, and only the second discovered in China. Despite China’s large land area, only one impact crater—the…
Several dozen small impact craters, 10–70-m in size, have been discovered in southeastern Wyoming. A team of U.S. and German geoscientists found these ancient craters…