New chip opens door to AI computing at light speed

University of Pennsylvania engineers have developed a new chip that uses light waves, rather than electricity, to perform the complex math essential to training AI. The chip has the potential to radically accelerate the processing ...

Private US lunar lander faces failure after 'critical' fuel loss

A historic private mission to land on the moon faced near-certain failure Monday after the spacecraft suffered a "critical loss" of fuel, dealing a major blow to America's hopes of placing its first robot on the lunar surface ...

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