NASA pauses to memorialize the astronauts who lost their lives in the Apollo, Challenger and Columbia tragedies
A key House Democrat says Clinton is willing to appear before a House Select Committee probing the 2012 terror attack in Libya
A 10-year-old in Kansas used her signing skills to assist emergency health care workers with a car crash victim
After winning the 2011 French Open, China's most famous tennis player was criticized for not properly thanking her country
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