Chinese scientists created a robot that can make oxygen on Mars. It could allow humans to someday live on the red planet.

• A robot created chemicals to make oxygen from Martian rocks. 
• The same process would have taken a human 2,000 years, according to researchers.
• The robot could one day help create human settlements on the red planet.

Chinese scientists have created a robot chemist that can make oxygen using Martian rocks, bringing humans a step closer to colonizing the red planet.