The curious minds at What If explore what would happen if Earth’s entire topography flipped upside down, imagining mountain ...

I will assume you're referring to what would happen if Earth stopped rotating all at once, without any gradual reduction in velocity. In that event, most things on Earth would be almost immediately ...

What if we found the way to drain all the Earth’s oceans through some mysterious portal at the bottom of the Mariana Trench? Ocean water makes up 70% of the Earth’s surface. How much liquid is that, ...