If validated, the implications of this story could be enormously significant. After all, this study points out that complex life first emerged when Snowball Earth’s monstrous mealtime came to an ...

Earth Day reminds us to think hard about the future we want for our planet, ourselves and all those who will come after us. The Great Acceleration already has nudged the Earth into a new state. It ...

Cover of A BRIEF HISTORY OF EARTH by Andrew H. Knoll. Cover from Harper Colling. I was actually sent a review copy of this well in advance of its late-April publication, but because I’m a ...

Of all the phases Earth has been through, the Mesozoic Era stands out among the rest—even from off-world. ... But a new study says that a past era of Earth may be a better indicator of complex life.

All of those sub-eyeblink slowdowns each century have been adding up, too. For Jurassic-era stegosauruses 200 million years ago, the day was perhaps 23 hours long and each year had about 385 days.