…the impactor would have encountered the atmosphere at velocities of approximately 20-50 km/s, and the released energy of the airburst would have been comparable to or greater than any known nuclear explosion.
[wonderplugin_pdf src=”https://cosmictusk.com/wp-content/uploads/Iturralde-Crater.pdf”]
From Wikipedia:
The structure was identified on the basis of Landsat imagery in…
Read more
734