How ByteDance Made China’s Most Popular AI Chatbot

When Chinese AI startup DeepSeek became a global sensation in January, it not only shocked Silicon Valley but also startled ByteDance, TikTok’s parent company. The Chinese tech giant had already launched Doubao, its own flagship AI assistant app with tens of millions of users. But when DeepSeek became the best-known Chinese AI company overnight, no…

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Two Titanic Structures Hidden Deep Within the Earth Have Altered the Magnetic Field for Millions of Years

A team of geologists has found for the first time evidence that two ancient, continent-sized, ultrahot structures hidden beneath the Earth have shaped the planet’s magnetic field for the past 265 million years. These two masses, known as large low-shear-velocity provinces (LLSVPs), are part of the catalog of the planet’s most enormous and enigmatic objects….

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Talking Cars 486: The All Questions Episode

Main theme: This week, the podcast panel opens the mailbag to answer your pressing questions about car buying, maintenance, safety, and the auto industry. We even bring in some special guests! Audience Questions• Should I get a new car if my really old car still works fine?• Does the “don’t buy a new car in…

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The 40 Best Movies on HBO Max Right Now (December 2025)

As the birthplace of prestige TV shows like The Sopranos and The Wire, HBO—and, by extension, HBO Max—is best known for its impressive lineup of original series. The network has also been upping the ante with feature-length content that is the stuff of Oscar dreams. Below is a list of some of our favorite films streaming on HBO…

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How Much Protein Do You Really Need?

Not necessarily. “The trouble with the new recommendation is that it gives people the impression that they’re deficient in protein and need to focus on getting more of it,” says Amy Keating, RD, a nutritionist at Consumer Reports. Most people’s protein intake is already within the new recommended range. Men ages 19 to 50 average…

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Popular Midsized Sedans to Avoid and What to Buy Instead

The better choices and under-the-radar alternatives are vehicles recommended by Consumer Reports, meaning they’ve scored well in our road tests, have good reliability ratings, and performed well in crash tests. Each one also comes standard with automatic emergency braking (AEB) with pedestrian detection, AEB that works at highway speeds, blind spot warning (BSW), and rear…

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