This dual cross-linking design lets the muscle switch stiffness on demand. In lab tests, its stiffness jumps from about 213 kilopascals — soft, like rubber — to 292 megapascals, hundreds of times ...

There are many incredible open-source robotic arm projects out there, but there’s a dearth of affordable, stable, and mobile robotic platforms with arms. That’s where XLeRobot comes ...

Terrence Tysall set a record scuba diving to the Edmund Fitzgerald. Ric Mixter dove in a submersible, finding a missing body. Here are their stories.