Satellite imagery shows the ravine gradually expanding over decades, taking on its stingray-slash-tadpole shape, and by 1991 had grown large enough for scientists to officially call it a megaslump.

factualpending

Speaker

SciShow Narrator

Evidence Quote

We actually have satellite images that show the ravine gradually expanding over the decades, taking on its stingray-slash-tadpole shape. And by 1991, it had grown so large that scientists could officially call it a megaslump.

Source

The Doorway to the Underworld is Growing and We Can't Stop ItSciShow
Created: 8/11/2026, 1:13:07 AM

My Notes

Loading notes...