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Science

Scientists reprogram immune cells inside the body to fight cancer

Scientists at UC San Francisco have developed a way to create cancer-fighting CAR-T cells directly inside the body, potentially avoiding the slow and extremely expensive process of removing, engineering, and reinfusing a patient’s immune cells. Using a two-particle delivery system, the researchers sent CRISPR gene-editing tools and new cancer-targeting DNA specifically into T cells, where the DNA was inserted at a precise location in the genome.

World

OpenAI cancels release of new artificial intelligence model over safety concerns

OpenAI will not release its latest artificial intelligence model, Astra 6.1, after internal tests found it fell short of safety standards, the maker of ChatGPT confirmed on Monday. The decision came ahead of a meeting of AI leaders at the White House Tuesday convened by US President Donald Trump and House Speaker Mike Johnson amid mounting controversy over the risks posed by rogue AI.

Science

Pi Day counts on never-ending numerical sequence for March 14 celebrations

March 14 is Pi Day, an annual celebration of the mathematical constant of pi, representing the ratio of a circle's circumference to its diameter. The holiday is observed on March 14 or 3/14 because 3.14 are the first three digits of the infinite number pi — 3.14159 ... and on and on. The celebration of Pi Day was the brainchild of physicist Larry Shaw and was first observed in 1988 at San Francisco’s Exploratorium, a science museum, and has since grown into an international event. At that first simple salute to pi in 1988, Shaw and his wife, Catherine, took — guess what? — pies — and tea to th

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