As the Sun enters a period of heightened activity, students now have a new way to explore its powerful effects on Earth and ...
An enigmatic group of fossil organisms has finally been identified—and is changing the story of how plants took root on land ...
In tweaking its chatbot to appeal to more people, OpenAI made it riskier for some of them. Now the company has made its chatbot safer. Will that undermine its quest for growth?
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