Nasa robot Valkyrie could build Mars homes

A robot called Valkyrie has been made by space agency Nasa to operate in difficult environments which are unsafe for humans.

The robot can use human tools and even map its own path safely.

Valkyrie is semi-autonomous which means that it can make decisions and perform actions without someone telling it to.

NASA hopes one day Valkyrie could help build places for humans to live on the Moon or Mars.

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