NASA scientist Bill McKinnon lectured on Sputnik Planum calling it an impact site (his lecture starts at 1hr 56 min if you want to skip to it. My favorite speaker was Simon Porter who lectured just before Bill). The below image was used by Bill to compare SP to the crater on Mars called Hellas. Bill stated, "This is evidence that SP is an impact site". Bill continued to explain how the object impacted at the center traveling southward as is indicated by the circle and arrow. |
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