The SpaceX approach to cutting hardware costs: @elonmusk famously embraced commercial, off-the-shelf components at SpaceX instead of defaulting to expensive aerospace-grade hardware. @NorthwoodSpace CEO @bridgitmendler says supply chain is one of the biggest challenges of building a space company, so they’re taking a similar approach: “We took the philosophy of: let's not buy the aerospace grade components that are ready off the shelf, let's just hire incredible engineers that can figure out…