(CNN)If NASA had allowed it, astronaut Scott Kelly would have loved to climb out of the Soyuz capsule after landing on Tuesday and walked on his own, Kelly's brother, Mark, said during a news conference on Friday.
This is exactly what would have taken place if Scott Kelly had been on a mission to Mars and landed on the red planet after six months of space flight. So far, since landing after 340 days in space, he has successfully completed every field test he's taken, with those tests designed to simulate what astronauts landing on Mars would experience. Part of Kelly's year-long mission in orbit consisted of experiments that will determine the program for landing humans on Mars in the future.
Scott Kelly's takeaways from his recent mission for a successful trip to Mars involve having a robust life-support system in place, protecting the crew from radiation and creating a propulsion system that reduces the trip time.
"Going to Mars is doable," Scott Kelly said during the NASA news conference that was also attended by his astronaut twin brother. "We're close enough that if we make the choice, I think we can do it."
Kelly's capsule landed upright on dry land, meaning he had to maneuver himself halfway out of the capsule before he could be helped out, but he's convinced that leaving the capsule would be easier on Mars due to the fact that the planet has less gravity.
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