Mark and Scott Kelly, twin brothers and former NASA astronauts, spoke to "CBS Mornings" about how the agency is set to lose ...

Investments, book deals and speaking engagements make former astronaut Mark Kelly one of the wealthier members of the US ...

Sen. Mark Kelly, D-Ariz., was considered a potential vice presidential pick by Kamala Harris. The former NASA astronaut is married to Gabby Giffords, the former congresswoman who was shot in 2011.

Sen. Mark Kelly's visit to the Kennedy Space Center on Saturday was a homecoming of sorts for the former astronaut, who last visited Cocoa Beach, Florida, in 2011 after commanding the Space ...

Mark Kelly, the astronaut husband of wounded Rep. Gabrielle Giffords, announced his retirement Tuesday after 25 years of service for the U.S. Navy and NASA, saying he wants to be by his wife's ...

Mark Kelly sworn in as US senator The former astronaut will be Arizona's second Democratic senator after defeating GOP Sen. Martha McSally by more the 78,000 votes in a special election.

Astronaut twins, Scott and Mark Kelly, prep for pioneering space study. — -- Astronaut Scott Kelly is poised to break the record for time in space for a U.S. Astronaut when he launches to the ...

Former astronaut Mark Kelly will be sworn in as a US senator for Arizona at noon ET on Wednesday, a senior Democratic aide told CNN. Kelly defeated Republican Sen. Martha McSally in a special ...

Kelly has an identical twin, Scott Kelly, who was also a NASA astronaut. From 2015 to 2016, Scott spent nearly a year aboard the International Space Station, while Mark stayed on the ground.

Senator Mark Kelly, a former astronaut, joined the Senate on Wednesday, becoming one of just two Democrats to unseat a Republican incumbent this year. Pool photo by Nicholas Kamm ...

Former NASA astronaut Mark Kelly is running for a Senate seat in Arizona. He is married to former Arizona Rep. Gabby Giffords, who was shot in the head at a "Congress on your corner" event in 2011.