SpaceX is quietly reshaping its Mars strategy around a new kind of astronaut: a Tesla-built humanoid that can work where humans cannot yet safely live. The company wants Optimus, Tesla’s bipedal robot ...

NASA's Perseverance robot, depicted here landing on the Martian dunes, used its cutting-edge cameras to image what could be the first evidence of life ever detected ...

Sometimes you get a small electric shock from touching your car door handle on a dry summer's day. The source of these shocks is a spark discharge, occurring between your body and the body of the car.