SpaceX’s Booster Failure Highlights Need For “Dissimilar Redundancy”
The Commercial Crew Program – All About Redundancy
SpaceX’s second-stage failure on their venerable Falcon 9 booster Thursday demonstrates exactly why NASA wants dissimilar redundancy for crewed flights. The idea is simple: if one launch provider is grounded for a technical issue or a launch failure investigation, the other can take up the slack. The duopoly of crewed launch providers is meant to assure the nation of continuous access to orbit while launching from American soil.