Scott Kelly, a former astronaut, discussed the return of NASA astronauts from the International Space Station on Fox News. He ...

Scott Kelly, a fellow astronaut, vouched for the Danish astronaut and said he didn’t deserve that kind of disrespect. Musk replied that he did, and trashed Mark Kelly. “Your brother claims to ...

Sen. Mark Kelly sold his Tesla, saying he could no longer stand the association with Elon Musk. The ex-astronaut has chosen a Chevy Tahoe as his new ride. Kelly and Musk once had a friendly ...

President Donald Trump’s increasingly influential adviser, Elon Musk, called Sen. Mark Kelly (D-AZ) “a traitor” over a social media post about the Arizona Democrat’s recent visit to Ukraine. The ...

Mark Kelly, D-Ariz., traded jabs on social media Monday, after the billionaire space entrepreneur called the former NASA astronaut a "traitor" for his recent trip to Ukraine. Kelly, Arizona's ...

Scott Kelly and Mark Kelly are American astronauts and identical twin brothers. They participated in NASA's Twins Study, ...

Musk defended his decision to brand the Arizona senator and former astronaut as a traitor over his support for Ukraine.