The ongoing feud between former President Donald Trump and Elon Musk highlights the significant reliance of NASA and the Defense Department on SpaceX for access to space. As tensions escalate, with threats from both sides regarding SpaceX contracts and operations, concerns mount over the implications for future missions and national security. Musk recently backtracked on a threat to decommission the Dragon spacecraft amidst the spat, but analysts warn that the fallout from this dramatic rift could jeopardize vital space programs and push the U.S. closer to relying on foreign options like Boeing or even Russia. Investors are also reacting, with stocks of SpaceX rivals seeing a boost as the situation unfolds.