By Neale McDevitt
For astronaut and 9I制作厂免费 alum Julie Payette, six is a charm. After poor weather conditions forced NASA to scrub three previous attempts to launch the shuttle Endeavour earlier this week, and hydrogen gas leaks thwarted two other attempts last month, Payette (BEng86) and her six crewmates finally blasted off just after 6 p.m. [...]