That is neither a necessary or sufficient condition to becoming an astronaut.
spaceflightnow.com
SATURDAY, AUGUST 26, 2006
1515 GMT (11:15 a.m. EDT)
The shuttle Atlantis' countdown is back on track today after delays Friday because of stormy weather. More afternoon storms are expected today and again tomorrow, prompting forecasters to predict a 60 percent chance of weather that would block the shuttle's planned 4:30 p.m. Sunday launch on a space station assembly mission.