NASA is not immune to the effects of a government shutdown if congressional leaders fail to reach an agreement before midnight Oct. 1 to prevent one.

Sierra Space had been looking to join SpaceX and Northrop Grumman as one of three commercial resupply partners for NASA aiming to fly its Dream Chaser spacecraft to the International Space Station.

All of this went well on the previous Starship test flight August 26, when SpaceX rebounded from four consecutive ...