SAN CARLOS, USA, Oct. 26, 2026 - Cowboy Space, led by Robinhood co-founder Baiju Bhatt,^[1] has unveiled Big Iron,^[2] the rocket it plans to use to build a constellation of 20,000 AI data-centre satellites in low Earth orbit.^[3] Its first stage is designed to be reusable,^[4] and the upper stage itself becomes the data-centre satellite once it reaches orbit.^[5] The rocket uses methalox-fuelled Clydesdale engines,^[6] and the first launch is targeted for December 2028.^[7] The constellation, named Stampede,^[8] was filed with the FCC in May,^[9] and the company asked for a waiver from the FCC's deployment schedule.^[10] Cowboy Space, previously named Aetherflux,^[11] raised $275 million in a Series B round.^[12] It is not alone: SpaceX has filed for up to a million data-centre satellites,^[13] and Starcloud for up to 88,000.^[14] Impact Insight. Every satellite added to low Earth orbit is another object that tracking networks must follow and other spacecraft must avoid. Constellations of tens of thousands, and proposals reaching a million, are why space-traffic management and debris tracking are becoming as central to keeping near-Earth space safe as finding asteroids is to protecting the ground.