US Space-Endurance Champ Says He Could Do Another Year

US Space-Endurance Champ Says He Could Do Another Year
Astronaut Scott Kelly speaks to reporters on Earth during a news conference held on the International Space Station on Feb. 25, 2016. NASA via AP
The Associated Press
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Astronaut Scott Kelly. (AP Photo/Gagarin Cosmonaut Training Center via NASA)
Astronaut Scott Kelly. AP Photo/Gagarin Cosmonaut Training Center via NASA
The Associated Press
The Associated Press
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