Science and technology

Associated Press
FILE - This undated publicity image released by courtesy of game publisher Sega, shows Sonic, left, and sidekick, Tails, in the 2006 video game "Sonic the Hedgehog," for the Xbox 360 and PlayStation 3. Sega says it will exclusively release the next three games starring the iconic blue critter on Nintendo platforms. (AP Photo/Sega)

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