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

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.

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.

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 ...

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

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

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. 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.

Astronaut Mark Kelly is setting his eyes on a new frontier: the United States Senate. In a four-minute-long video released Tuesday morning, Kelly announced that his "next mission" is to run for ...

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 ...

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 ...