FILE - In this May 7, 2009 file photo, Kudan Elementary School children touch a cheek of Japan's robot teacher Saya following a special class by the robot that can express six basic emotions, ... more 
FILE - In this May 7, 2009 file photo, Kudan Elementary School children touch a cheek of Japan's robot teacher Saya following a special class by the robot that can express six basic emotions, developed by Tokyo University of Science Professor Hiroshi Kobayashi, in Tokyo. Japan's space agency JAXA announced Monday, Feb. 14, 2011, that it is considering putting a talking humanoid robot on the International Space Station in 2013 to watch the mission while astronauts are asleep, monitor their health and stress levels and communicate to Earth through the microblogging site Twitter. less 
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Associated Press | Photo By Koji Sasahara, FILE
Thu, Feb 17, 2011 8:53 AM EST