Gary sent in the following links – www.dailymail.co.uk/sciencetech/article-4707418/Are-tales-legendary-King… …. which concerns a book by a controversial historian who seems to have hit on a way to make money by re-writing history, and www.dailymail.co.uk/sciencetech/article-4697502/NASA-image-reveals-patte… …— NASA images show patterns exposed in giant crater. There are a lot of images to look at and digest but what kind of impact was involved – a meteor or an electrical discharge.
… and also www.newscientist.com/article/2141303-earths-underwater-dunes-help-explai… … the hypothesis is that under water dunes on the bottom of seas on the earth may give a clue to dunes detected by radar on the surface of Venus. The comparison is with the pressure of the heavy atmosphere of Venus with the pressure of all that ocean water above the earth bound dunes. Novel idea.