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Elon Musk’s New Grok 4 Takes on ‘Humanity’s Last Exam’ as the AI Race Heats Up

New Grok 4 Takes on ‘Humanity’s Last Exam’ as the AI Race Heats Up Elon Musk has launched xAI’s Grok 4—calling it the “world’s smartest

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Trump Names Transportation Secretary Sean Duffy as Interim NASA Chief

Trump Names Transportation Secretary Sean Duffy as Interim NASA Chief The selection of Secretary of Transportation Sean Duffy to temporarily lead NASA adds to the

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The Benefits of Raising Conscientious Kids

My preschooler is obsessed with rules—and, more importantly, exploring their loopholes. When I tell him to stop throwing rocks, he will drop a rock dramatically

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Climate Change’s Fingerprints Came Early, a Thought Experiment Reveals

A Thought Experiment Reveals the Fingerprints of Climate Change Came Early Climate change left its signature on the atmosphere early in the industrial revolution, reveals

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4 Nonfiction Books Scientific American Recommended In June

See The 4 Books Scientific American Loved Reading In June Here’s a collection of exclusive book recommendations, from slithering snakes to a river’s impact, for

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Weather Forecasters Lose Crucial Hurricane Detection Microwave Satellite Data

On television broadcasts and forecast maps, hurricanes appear as two-dimensional swirling vortices, belying their extremely complex three-dimensional structure. Being able to peer past the tops

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What Is Thimerosal? Why Most Vaccines Don’t Contain Mercury Anymore

This week the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices is meeting to review and vote on several vaccine recommendations. Just

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Elon Musk Launches the Robotaxi—Can Tesla’s Cybercab Share the Road with America’s Myth of the Highway?

Can Tesla’s Cybercab Share the Road with America’s Myth of the Highway? For more than a century, cars have meant freedom, escape and self-reinvention to

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Gaia, Europe’s Galactic Cartographer, Is Gone But Not Forgotten

This observatory has probably been the most transformative astronomy project of the 21st century, but there’s a good chance you’ve never heard of it. Just

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How Drone Swarms Work—From Iran’s Shahed Attack to Ukraine’s Operation Spiderweb

How Drone Swarms Work—From Iran’s Shahed Attack to Ukraine’s Operation Spiderweb Iranian Shahed drones, Ukrainian quadcopters and the U.S.’s Golden Horde program reveal three paths