Meanwhile, someone with the same face, body, and DNA was back on Earth: his identical twin, Mark Kelly ... study unlike anything NASA had ever tried before. The mission: Discover long-term ...

Kelly wrote, "Whether it was from my time in the Navy and at NASA, serving in the United States Senate, or visiting our ...

Mark Kelly was listed by betting ... Prior to being elected to the Senate in 2020, Kelly was an astronaut at NASA and traveled to space on four separate missions from 2001 to 2011, spending ...