The Space Launch System rocket's RS-25 engine was fired up for the “final round of certification testing ahead of production of an updated set of the engines," according to NASA. The test occurred at ...

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CalMatters journalism has spurred new laws and made the state more accountable to Californians. We're just getting started.

The latest version of Elon Musk's Ai chatbot Grok echoes the views of its billionaire creator and will sometimes search for ...

This quirky little gadget went viral on TikTok, but it's got a lot more going for it than meets the eye. Here are some of the ...