Citing costs advertised by commercial partners such as SpaceX for its Falcon 9 rocket, the cost has come down to $2,720 per kilogram.That is a substantial reduction compared to NASA's space ...

"The shuttle payload to ISS is less than to LEO, 16,050 kg, so its cost is also higher at $93,400/kg," adds the space agency. Overall, NASA estimates that the net cost of space station launch ...