WINTER HAVEN, Fla. — It was the trip of a lifetime, diving to the coldest place on Earth as a citizen scientist.
But, time spent in Antartica is not John Humphreys ultimate goal: The teenager wants to be an astronaut.
“I set my mind on something and work until I achieve what I set out to do. I kind of obsess and become a workaholic about it,” he joked. “If you really want something done, and it’s a goal you have, set that goal, focus on it and get it done.”…