[ad_1] The asteroid impact that slew the dinosaurs may have also indirectly sculpted the largest ripple marks...
asteroid
[ad_1] Ancient “megaripples” as tall as five-story buildings are hiding deep under Louisiana, and their unique geology...
[ad_1] Some 66 million years ago, a huge space rock about the size of Manhattan slammed into...
[ad_1] Some 66 million years ago an asteroid slammed into what is now the Gulf of Mexico,...
