90-min global delivery: US Air Force funds spacecraft to transport cargo from orbit

The US Air Force is funding Sierra Space to develop "Ghost," a spacecraft capable of delivering critical supplies anywhere on Earth within 90 minutes. Ghost can stay in orbit for up to five years, storing and delivering essential cargo as needed. The company aims to expand its payload capacity from 150 kg to 5-10 metric tons within a year. This technology could revolutionize global defense logistics and disaster relief efforts. Each Ghost vehicle currently costs tens of millions of dollars to manufacture, but the company hopes to reduce this to a few million dollars per unit.