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NASA says twin astronauts DNA now different after space
The space agency studied the DNA of twin astronauts Scott and Mark Kelly.
Gabby Giffords' powerful entrance to DNC follows with strong message
Aaron Rodgers earns $50K for charity with 'Celebrity Jeopardy!' win
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Gabby Giffords' powerful entrance to DNC follows with strong message
Aaron Rodgers earns $50K for charity with 'Celebrity Jeopardy!' win