Is SpaceChain a breakthrough in scientific exploration or just a marketing gimmick? This blockchain-powered satellite network aims to revolutionize space commerce by enabling secure, decentralized transactions and data storage beyond Earth. Proponents highlight its potential to enhance cybersecurity, streamline supply chains, and democratize access to space technology—real applications already tested on the ISS. Critics, however, argue it’s overhyped, with limited practical impact and high costs, leaning on crypto buzz to attract attention. While SpaceChain’s tech, like multi-signature transactions in orbit, shows promise, skepticism persists about scalability and necessity. Is it pioneering a new frontier or riding a wave of blockchain hype? The answer likely lies in balancing its tangible achievements with the speculative allure of space and crypto.