AWS executive cautions on space data centers: commercial viability faces major hurdles for decades

Matt Garman, CEO of Amazon Web Services (AWS), stated during a recent podcast appearance that space-based data centers are unlikely to achieve economic or operational feasibility within the next ten to twenty years. While the concept involves placing computing hardware in orbit, powered by solar energy, Garman highlighted significant barriers including launch costs, payload capacity, thermal management, and maintenance. He detailed that deploying large-scale facilities requires substantial launch frequency; using a one-ton GPU server rack as an example, he noted that even with rockets carrying 100 tons per flight, a daily launch cadence would be necessary for commercial viability. Furthermore, managing waste heat in the vacuum of space presents a major engineering challenge for multi-megawatt facilities. Regarding current AI demand, Garman noted AWS is deploying hardware at a rate of one GPU every 14 seconds, yet demand still outstrips supply, projecting capacity shortages for AWS over the next two years. He also mentioned that AWS could pre-sell the computing power corresponding to all accelerators scheduled for 2027, though some capacity is being reserved for future clients. Separately, Amazon's 2026 cash capital expenditure is projected at $220 billion, while its free cash flow for the twelve months ending September 30 was a net outflow of $42.4 billion.