NEW YORK — For sale: A 54-pound (25-kilogram) rock. Estimated auction price: $2 million to $4 million. Why so expensive? It’s the largest piece of Mars ever found on Earth. Sotheby’s in New York will ...
Image by Prof. XU Yigang's team. Image usage restrictions: News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only.
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