We may earn commission if you buy from a link. Why Trust Us? Geologists have now unearthed evidence of a 3.5 billion-year-old crater found in a layer of Australian rock. Shatter cones, which are ...
A topographic model of the Moon using a color-scale from purple (low) to red (high ... Aitken basin (SPA), the largest and oldest impact crater on the Moon. For geographic context, the letters ...
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