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The Pentagon told suppliers they can't use Anthropic's artificial intelligence tools after the company said it would not let its tech be used for autonomous weapons and mass domestic surveillance.

In 1897, S.A. Andree took an unlikely approach to exploring the North Pole: As other Arctic adventurers tried to march, sail or sled to the northernmost point on Earth, Andree decided to fly in a hydrogen balloon. Alec Wilkinson tells the story of the ill-fated expedition in his new book, The Ice Balloon.

The 2026 Iditarod Trail Sled Dog Race began Saturday in downtown Anchorage, as 37 teams set off on the city's streets and trails for an 11-mile run in front of thousands of cheering fans.

The second son of the late supreme leader keeps a low profile. But he's long been viewed as wielding his power behind the scenes, from crushing dissent to influencing presidential elections.

Nigeria is one of three places where polio is still a problem. But there hasn't been a case in almost a year. So Africa is on the verge of being polio-free.