Nuclear weapons are back. This week, Moscow announced that it would no longer abide by the once hugely significant ...

On Aug. 8, 1974, facing expected impeachment over the Watergate scandal, Richard Nixon became the first U.S. president to ...

Nuclear weapons, climate change, and artificial intelligence threaten humanity just like in his cult film Terminator. His new ...

As summer temperatures peak across the northern hemisphere, a team at Reuters investigated the dangerous heat conditions ...

Chicago Cardinal Blase Cupich delivered an important address in Nagasaki about the church's teaching on war. He was there to mark the anniversary of the atomic bombs dropped on Nagasaki and on ...

Moving, tragic, surprising, inspiring, terrifying, shocking... This is a selection of images from our planet, over the past ...

Jonathan R. Hunt considers the legacy of the scientists and policymakers who ushered in an era of existential dread.