Dustin Kopp

Pope Francis died Monday at the age of 88. As tributes pour in from around the world, the Vatican faces a transition.

Pope Francis made it his mission to change the perception of the Catholic Church around the world.

The messages were sent the same day Hegseth shared similar details in a separate Signal chat that inadvertently included The Atlantic's editor-in-chief.

First, a report on what worries scientists most about bird flu. Then, a look at what's next for AI at Google DeepMind. And, inside the monarch butterfly migration mystery.

At least 2 killed in Oklahoma flooding; Tension over conservation efforts at California islands