A record supply load won’t reach the International Space Station as scheduled | The problem arose early Tuesday when the spacecraft’s main engine shut down earlier than expected.
https://arstechnica.com/space/2025/09/a-record-supply-load-wont-reach-the-international-space-station-as-scheduled/
4 Comments
Reminds me of the KSP days when we’d take the Kerbal out of the capsule and push it using the Kerbal’s EVA suit.
Best wishes Cygnus NG-23 S.S. William C. McCool!
I’m not sure why Stephen Clark left all the details out. For more detail-oriented coverage of this flight: https://www.nasaspaceflight.com/2025/09/crs-ng-23/
This is not good news. Let’s hope they can get it to the ISS eventually
Looks like SpaceX might be sending it to the ISS
Was the BT-4 engine modified to handle the heavier XL version of Cygnus? It’s a Japanese engine with a very good history on Cygnus and large satellites. Wild speculation: the upgrade resulted in the failure.