Cowboy Space unveils Big Iron rocket for orbital AI data centers

Cowboy Space, founded by Robinhood co-founder Baiju Bhatt, detailed its Big Iron rocket: 86 meters tall, 4.7 meters in diameter, powered by methane-fueled Clydesdale engines. It will lift up to 18 metric tons to low-Earth orbit, and its upper stage will form the core of a space data center with five GPU racks and six inter-satellite laser links.

• Big Iron is 86 m tall and 4.7 m wide, with up to 18 t to LEO
• The first stage will use nine methane-fueled Clydesdale engines
• The upper stage becomes a data center with five GPU racks and six laser links
• First launch is targeted before the end of 2028