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 ...

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.

Here’s how it works. Former NASA astronaut Mark Kelly, seen addressing supporters on Tuesday night (Nov. 3) in Tucson, has been elected by the state of Arizona to the U.S. Senate.

Sen. Mark Kelly of Arizona is one of nine Kamala Harris may be considering as a running mate. Kelly, along with his twin brother, was a NASA astronaut ...

Mark Kelly's four years in the Senate came after a career in the military, at NASA and on front lines of advocacy for gun ...

Mark Kelly can look to a notable precedent in astronaut-politicians: John Glenn. Glenn became the first American to orbit the Earth in 1962. He won an Ohio Senate seat in 1974 and served until 1999.

Veteran astronaut Mark Kelly, the husband of Arizona congresswoman Gabrielle Giffords, announced his retirement from NASA and the U.S. Navy today (June 21) after more than two decades of service.

Retired astronaut Mark Kelly announced Tuesday that he will run for the late Sen. John McCain’s Arizona Senate seat in 2020 to finish the term. Kelly, who came into the national spotlight when ...

Here’s how it works. Astronaut Mark Kelly takes a moment for a photo near the commander's station on the forward flight deck of Space Shuttle Discovery during the STS-124 mission. (Image credit ...

Former NASA astronaut Mark Kelly watches as his wife, Arizona Congresswoman Gabrielle Giffords, receives a warm welcome by President Barack Obama at the State of the Union speech in Washington on ...

Mark and Scott Kelly with their new mayoral medals at West Orange, N.J. town hall May 19, 2016. Mark Kelly's wife, former Congresswoman Gabrielle Giffords, is at right. Jeremy Lips / Space.com ...