Earth responded to its most severe past warming event by evolving a new and bizarre type of photosynthesis that allowed a ...

How primitive plants evolved to survive Earth's most catastrophic extinction event Earth responded to its most severe past warming event by evolving a new and bizarre type of photosynthesis that ...

In chaotic times, it helps to be able to predict the future so you can plan for it. A new Stanford study can help.

A growing network of AI safety advocates is recruiting influencers and funding content to warn that superintelligent machines could threaten human survival – even as many experts dismiss such fears as ...