Organizers want the July 4 fireworks in the nation’s capital to break the world record. But the fun will also come with air pollution and possibly headaches for pet owners and zoo keepers. By Quinn ...

July 3, 2026 Scientists at UCLA discovered a surprising reason aging muscles heal more slowly. In older muscle stem cells, a protein called NDRG1 builds up and acts like a brake, slowing the cells’ ...

July 4, 2026 • NPR member station reporters across the U.S. asked people how they are thinking about their country on its semiquincentennial. July 3, 2026 • Superfans and sleuths appear to have their ...

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July 3, 2026 • On the eve of America's 250th birthday, NPR's Michel Martin asks House Minority Leader Hakeem Jeffries of New York about the Democratic Party's midterm future.