Scientists say they've made a key breakthrough that would allow robots to figure out complex tasks on their own — but experts say it raises questions about how much risk comes with letting robots be in charge of their own learning.

The winner of a half-marathon race for robots broke the fastest human record. The humanoid named Lightning finished the race in 50 minutes, 26 seconds. (AP Photo)

The latest boom in robotics represents a revolution in the way machines have learned to interact with the world.

A full-size humanoid robot just ran faster than most people will ever sprint. Chinese robotics firm MirrorMe Technology has unveiled Bolt, a humanoid robot that reached a top speed of 22 miles per hour during real-world testing. This was not CGI or a ...

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