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Shrinking Mercury all it's cracked up to be

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Shrinking Mercury all it's cracked up to be

Alan Duffy

Amidst the exciting news of landing on comets and SpaceX plans to get to Mars, NASA released astounding findings that the smallest planet Mercury actually has tectonic activity just like Earth. Such a small world should be geologically dead and yet it has features that appear unweathered by bombardments from meteors meaning that they are no older than a few million years. It means Mercury joins Earth as the only rocky planet to have tectonic activity, and also means it may have Earthquakes (or should that be Mercury-quakes?)

I wrote about it in theconversation and chatted to ABC Breakfast News TV as well as ABC 702 radio.