Mark Kelly

• Pentagon to investigate Democrat who urged troops to defy illegal orders

  Democratic Sen. Mark Kelly of Arizona served in the U.S. Navy as a fighter pilot before going on to become an astronaut, later retiring at the rank of captain to enter politics.

  U.S. News

  Nov 24, 2025
  
• ‘Mission for Arizona:’ Retired NASA astronaut Mark Kelly launches bid for U.S. Senate

  Kelly, who has never held elected office, is the first Democrat to enter the 2020 race in Arizona.

  Politics

  Feb 23, 2019
  
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• NASA astronaut Scott Kelly gives final news conference as one-year mission comes to a close

  It's almost over. Scott Kelly, one-half of the One-Year Mission, is getting ready to head back home on March 1.

  Science

  Feb 25, 2016
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• Twin astronauts prepare for one-year study on long-duration spaceflight

  More information on the effects of space is needed. Mark and Scott Kelly are doing their part.

  Science

  Jan 20, 2015