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Tristan Buckmaster is a mathematician at New York University. He poses for a portrait in his office in Manhattan on September 11, 2026. Buckmaster and his collaborator Levent Alpöge have been working on the Navier-Stokes equations. They are clashing with OpenAI, which claims to have cracked the equations.
Karsten Moran/for The Washington Post
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Getty Images
AI solved one of math's hardest problems. Humanity learned nothing (so far)
Geoff Brumfiel
OpenAI beat humans to solving the Navier-Stokes problem, but mathematicians say the AI's solution isn't telling them much.
Rob Crisp, a peer support specialist with the Holistic Empathetic Assistance Response Team (HEART) program, responds to a call for a wellness check at a parking lot in Durham, N.C., on Sept. 14.
Cornell Watson for NPR
Police, fire, EMT and mental health: How one city is leading the charge to reshape 911
Meg Anderson
US President Donald Trump speaks about healthcare in the Oval Office of the White House in Washington, DC, on September 18, 2026.
JIM WATSON
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AFP via Getty Images
Trump heads to U.N. looking for wins after a rough week
Franco Ordoñez
House Freedom Caucus chair, Rep. Andy Harris, R-MD, spoke to reporters alongside other members of the Freedom Caucus in March amid tense negotiations over government funding.
Samuel Corum
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Getty Images North America
The House Freedom Caucus has to transform — it could preview the GOP's post-Trump era
Eric McDaniel
Texas Standard
Man shot by ICE in Austin says he has a bullet lodged in his back and was denied medical care
The shooting happened Sunday afternoon near an intersection on the north side of the city. The man’s lawyer says he has been released from the hospital into ICE custody.
Texas nature doc celebrates waterways and issues a challenge for sustaining them
A town 14 miles from Dallas has no clean drinking water. She’s trying to fill the gap
The VA is reaching out to female veterans, who sometimes are hesitant to identify as veterans at all
Today on Texas Standard: ‘Deep in the Heart 2’ explores the rivers and aquifers that sustain Texas
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