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SCIENCE BRIEFING

Times Staff and Wire Reports

Watch out, scientists -- you may be replaced by a robot.

Two teams of researchers say they have created machines that could reason, formulate theories and discover scientific knowledge on their own, marking a major advance in the field of artificial intelligence.

Such robo-scientists could be put to work unraveling complex biological systems, designing new drugs or understanding the cosmos.

Reports about the machines were published Thursday in the journal Science.

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