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Video Shows Explosion at Chernobyl Nuclear Power Plant

Archaeologists have unearthed the foundations of London’s first public building. Excavating under the basement of a commercial building in the city’s financial district, they encountered what they believe are the roughly 2,000-year-old remains of a basilica from Roman London. The basilica was part of London’s Roman forum, or public square, and was “effectively the first … Read more

Vice President JD Vance told European leaders on Friday that their biggest security threat was not military aggression from Russia or China, but their own suppression of free speech — including efforts to block hard-right parties from joining governments. An audience that was largely expecting Mr. Vance to lay out the Trump administration’s priorities for … Read more

As the Trump administration continues to withhold billions of dollars for climate and clean energy spending — despite two federal judges ordering the money released — concerns are growing that the United States government could skip out on its legal commitments. Typically, when the federal government spends money through a grant or a loan program … Read more

At least six people were killed and 25 others injured on Friday in a fire at a construction site for a luxury hotel in Busan, a port city in southeastern South Korea, fire officials said. Fire officials received the first report around 10:50 a.m. local time of a fire, which apparently broke out in the … Read more

The words “optimal” and “optimize” derive from the Latin “optimus,” or “best,” as in “make the best of things.” Alessio Figalli, a mathematician at the university ETH Zurich, studies optimal transport: the most efficient allocation of starting points to end points. The scope of investigation is wide, including clouds, crystals, bubbles and chatbots. Dr. Figalli, … Read more

After 15 months of war, Hani al-Dibs, a high-school teacher, thought his greatest wish was to see the bombardment of Gaza come to an end. But the long-awaited cease-fire has brought only bitterness and dread. Mr. al-Dibs is one of countless Gazans burdened with an agonizing duty: trying to recover the remains of loved ones … Read more

President Trump is pursuing a far more aggressive trade policy than he embraced in his first term, allowing his unfettered instincts about how to put America at the forefront to guide him with little pretense of investigations or extended deliberations. Since taking office, Mr. Trump has threatened punishing tariffs on goods from every global trading … Read more

At the tail end of her 30s, Elizabeth Day found herself divorced and single after a string of long-term relationships. Ms. Day, a British writer and podcaster, entered a world of dating she had never encountered, not having been single since the advent of dating apps. “It was such a jungle out there,” Ms. Day, … Read more

Olena Matvienko knows she doesn’t have much to go home to. The Russians captured her city, Mariupol, shortly after invading Ukraine. A Russian missile destroyed her old apartment building. Her daughter and her granddaughter were killed in the city. Still, Ms. Matvienko, 66, would like to return. But after comments by President Trump and his … Read more