Space station commander Daniel Burbank says he'd like to take part in the historic event, but it's important that SpaceX fly when it's ready.
Long delay for space station's 1st private hookup →
"I think we're getting by OK," Burbank said, "but we need to have as much up-mass and down-mass capability as we can to support space station operations at the level we need it."
Delay for space station's 1st private cargo run →
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