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NASA and SpaceX make second attempt this week to launch astronauts
The arrival of the new crew will pave the way for the return of two astronauts who have been "stuck" on the station since June of last year.
The arrival of the new crew will pave the way for the return of two astronauts who have been "stuck" on the station since June of last year.
(Image credit: Terry Renna/AP)
