The pope was a strong advocate for the poor and the environment and a towering figure on the world stage, addressing not just ...

Excerpt from the new book 'Sister, Sinner,' by Claire Hoffman, about the life and mysterious disappearance of 1920s evangelist Aimee Semple McPherson.

A camera affixed to the International Space Station recently spotted some curious symbols amid a barren desert landscape.

Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they remain cautious. What is the best framework for the global governance of AI?