When NASA was operating its Space Shuttle program, the U.S. had a practical way to get items to and from the International Space Station by returning around 25,000 pounds of cargo every time it landed.
Since that program retired in 2011, SpaceX’s Dragon capsule has been the only American vehicle to fly NASA astronauts to and from the ISS. The vessel will fly to the ISS approximately five times a year, making astronauts wait months to bring new discoveries back to earth or have emergencies resolved, says CEO and co-founder of SpaceWorks John Olds. See more here.
