A previous attempt at launch was scrubbed in December because the ISS crew needed time to conduct spacewalks for repairs . The mission is the first for one of two private companies involved in carrying frieght to the ISS . SpaceX has been working on its Dragon capsule since last year, and it's expected to be ready by this summer. The trip is part of a $ 1.9 billion contract . Next up will be a SpaceX mission in late February .
The mission is the first for one of two private companies involved in carrying frieght to the ISS . SpaceX has been working on its Dragon capsule since last year, and it's expected to be ready by this summer. The trip is part of a $ 1.9 billion contract . Next up will be a SpaceX mission in late February .