While Ukraine said it would agree to a 30-day cease-fire proposal, many in the country were skeptical about whether Russia would do the same.
Pope Leo XIV’s spiritual message on artificial intelligence arrived as Silicon Valley’s A.I. enthusiasts pursue their own spirituality through technology....
Companies say it’s a better way to dispose of the Cold War-era material — and fix a shortage of nuclear fuel. But the plan has also faced criticism from nonproliferation experts....
Authorities in Britain and France warned that “unprecedented” temperatures — at a time when few expected them — could persist. Climate change has made heat waves more frequent and more intense....
How prediction-market ‘sharps’ have made millions wagering on everything from war to Rotten Tomatoes....
While global warming is still a threat, the decision to back away from a worst-case outlook raises questions about whether some risks have been overstated....
Aspects such as drone technology and diplomacy show how the wars intersect on the battlefield and in global alignments, providing a model for future conflicts....
President Trump’s proposal to end the war with Iran would delay tackling the most contentious issues — a tactic that has had mixed results in Gaza....
Thousands who fled Russia after the invasion of Ukraine have built an enclave in Phuket. An air of impermanence hangs over their community....
Forecasters warned that temperatures could climb to the highest level ever recorded in the month of May, reaching 35 degrees Celsius (95 degrees Fahrenheit) in some areas of England....
In the Desert and Mountain West, towns like Kearny, Ariz., are already warning residents they could soon run out of water, but rationing so far has been patchy....
The document marks a powerful foray by the leader of the Roman Catholic Church into the debate about the misuse or overuse of artificial intelligence....
On this Memorial Day, families of those killed in the Iraq War reflected on the sacrifice and offered advice to today’s military families....
Dermatologists are flummoxed....
Andriy Melnyk, criticized as a Nazi collaborator and lionized as an anti-Soviet resistance leader, was given state honors for his reburial near Kyiv....
Lawmakers, including some of President Trump’s closest allies, slammed the emerging agreement as effectively undermining the president’s own war goals....
The movie, which cost $300 million to make and market, was expected to collect about $102 million from Thursday through Monday at domestic theaters....
Detroit-based automakers pioneered open trade between Canada and the United States, benefiting both countries. President Trump’s trade war now leaves their future in the country in question....
Buildings rattled in the Ukrainian capital for hours early Sunday. Russia launched an Oreshnik intermediate-range ballistic missile for only the third time in the war....
The R.V.s are seen as an eyesore — the most visible sign of the state’s homelessness crisis. Neighbors and politicians want them gone. The people who call them home feel under siege....
Luke Morrison may be the youngest person keeping alive an age-old tradition: to process war through the memories and mementos of those who experienced it....
A partner in the war, Israel has been largely left out of the peace talks, a humbling setback for its prime minister with significant risks for the country....
Residents who experienced attacks in recent days were shaken deeply by the conflict coming home to the capital region, the seat of the Kremlin’s power....
Pakistan and Qatar have dispatched teams to Iran under the looming threat of resumed war, after weeks of diplomacy failed to produce an agreement....
The E.P.A. warns that short-term exposure to the compound can cause skin and eye irritation and respiratory issues....
Officials warned of a possible explosion or spill in Orange County on Friday after a tank that leaked a toxic substance grew more unstable....
The economic backdrop that Kevin M. Warsh inherits as chair of the Federal Reserve does not call for the interest rate cuts that President Trump wants....
President Trump said he would send 5,000 troops to Poland, part of a back-and-forth that has left European leaders reeling....
Soaring oil prices and a surging dollar are testing Asia’s foreign-exchange reserves, which were built up after the 1997 crisis....