Beskrivning : NG-21 is the twenty-first flight of the Cygnus, an expendable American cargo spacecraft used for International Space Station (ISS) logistics missions, that launched on 4 August 2024. It is operated by Northrop Grumman under a Commercial Resupply Services contract with NASA. The spacecraft is an Enhanced Cygnus, named the S.S. Francis R. "Dick" Scobee in honor of the NASA astronaut who died in the Space Shuttle Challenger disaster.