Tracy: Doctor Spaceman, when they check my DNA, will they tell me what diseases I might get, or help me to remember my ATM pin code? Dr. Spaceman: Absolutely. Science is whatever we want it to be.

It’s a resume that would make any mother weep with pride. Lt. Cmdr. Jonny Kim is a decorated Navy SEAL, a Havard-trained doctor and a NASA astronaut. And now he’s going to space. Kim is expected to be ...

Remember those assignments when you were little about what you wanted to be when you grow up? You might hear doctor, astronaut or Navy SEAL. Jonny... Navy SEAL-turned-doctor-turned-astronaut says he ...