Mark Kelly gained fame as an astronaut, but as many got to know him as the husband of Gabrielle Giffords, questions arose about his political future.

NASA astronaut Mark Kelly on the flight deck of the space shuttle Discovery during the STS-124 mission in June 2008. (Image credit: NASA) Kelly logged more than 54 days on four space shuttle missions.

Senators introduce a resolution to designate June 30 as National Asteroid Day, emphasizing planetary defense and public ...

Sen. Mark Kelly (D-AZ) blasted Elon Musk Friday, implying the SpaceX CEO was too afraid to travel into space as two other astronauts also laid into the billionaire. Kelly’s attack on Musk came ...

Arizona Sen. Mark Kelly knows a few things about objects in outer space, including those that make their way to Earth.

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.

Arizona's U.S. Sen. Mark Kelly and his twin brother, Scott Kelly, slammed Elon Musk after he insulted another astronaut on X.

The next presidential election is still a few years away, but Arizona's senators could be contenders in a wide-open ...

Mark Kelly knows a thing or two about flying high—both literally and otherwise. As a NASA astronaut, he was part of four space shuttle missions between 2001 and 2011, amassing more than 54 days ...

Sen. Mark Kelly and his twin brother clashed with Trump adviser and world’s richest man Elon Musk after Musk claimed that a pair of astronauts were left on the International Space Station for ...

As the nation reels from the latest outbreak of political violence, the senator from Arizona and his wife, former Rep. Gabby ...