Geoscientists say Earth will be home to one massive supercontinent about 200 million years from now; there are four prominent versions of this mega-continent. The climate might be surprisingly balmy ...

About 66 million years ago, the reign of the reptiles came to a dramatic end as a huge asteroid slammed into Earth. Scientists have now predicted that mammals will meet their maker in a similar ...

The human passion for gouging burnable stuff out of the earth and reducing it to ashes may well be the end of us. But it's not clear who the “us” is. Not you and me, obviously; we'll be lucky to see ...

Earth's continents are set to merge into a single landmass over the next 250 million years, an animation shows. The animation was posted Tuesday to Reddit, where it quickly gained over 3,500 comments ...

Earth's mass extinctions have come for the dinosaurs and a whopping 95 percent of ocean species. Mammals, like us, may be next — eventually. In intriguing new research published in the science journal ...