Mark Kelly, a Democratic US senator from Arizona, was censured by Pentagon chief Pete Hegseth. Before his career in office, ...

Sen. Mark Kelly was recently censured by Pentagon chief Pete Hegseth for his role in a video to service members. Before his ...

Twin brothers and former NASA astronauts Mark and Scott Kelly have each flown four missions and were part of NASA's twin study to research the impact of spaceflight on the human body. Hours before ...

What happened on his first-ever space walk. — -- Mission accomplished. Commander Scott Kelly and his American co-worker, Dr. Kjell Lindgren, completed their first-ever space walk today lasting ...

EXCLUSIVE: Former NASA astronaut Scott Kelly has joined forces with Italian producer Andrea Iervolino (Ferrari) and his Space11 Corp banner for the upcoming “romantic space drama” I See You, which is ...

The Department of Defense is taking administrative action against former NASA astronaut and current U.S. Senator Mark Kelly ...

NEW YORK (WABC) -- You would expect a trip to space to be transformative, but NASA says it can lead to permanent DNA changes. The space agency studied the DNA of twin astronauts Scott and Mark Kelly.

Idenitcal twins Scott, right, and Mark Kelly were the test subjects for a NASA study on how long periods of spaceflight affect the human body, with Mark on Earth while Scott spent almost a year in the ...

I couldn't sleep last night, because Scott Kelly came home. The NASA commander hopped into a metal pod smaller than a Volkswagon Beetle, before plummeting to Earth at speeds exceeding 500 miles per ...

Space Station-25th Anniversary FILE - In this undated photo provided by NASA on Tuesday, March 1, 2016, astronaut Scott Kelly looks out the cupola of the International Space Station. (NASA via AP, ...