Robot lawn mowers are pricey, but they take all the effort out of perfect lawn care.

Elon Musk has repeatedly touted the Optimus humanoid robot as Tesla’s TSLA most significant long-term value driver, suggesting it could eventually propel the company’s market cap to $25 trillion. Yet, ...

In a Shanghai lab filled with motion sensors and whisper-quiet servo motors, a pair of synthetic eyes blink with unsettling realism. They scan the room, track a visitor’s face, and seem to ...