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NASA’s Scott Kelly to Retire in April After Spending Year in Space -
NASA Salvages Mars Mission That Should Have Launched by Now -
Astronaut Scott Kelly Survives Year in Space -
Homecoming for 2 Spacemen After Year Aloft: ‘We did it!’ -
One-Year Spaceman Sees Mission as ‘Steppingstone’ to Mars -
Scott Kelly: NASA Astronaut’s Photo From Space Prompts UFO Speculation -
Astronaut Completes Spacewalk Right Before Setting US Record