A.I. Election Videos Are Flooding Brazil. Could They Sway the Vote?

Brazil spent years targeting electoral lies on the internet. Now, artificial intelligence is stumping the election authorities and reshaping a high-stakes race.

Are Babies Conscious?

By pinpointing when it begins in young humans, scientists hope to better understand what consciousness is, and how it arises, in all of us.

After a Difficult Loss, Nigeria Has Become a Source of Pain for Chimamanda Ngozi Adichie

Adichie has moved countless readers with her novels about Nigerians at home and abroad. After the death in Lagos of her toddler son, her homeland no longer feels as much like home.