Cowboy Space Corporation has successfully closed a $275 million Series B funding round, elevating its valuation to $2 billion. The round was led by Index Ventures, with contributions from Breakthrough Energy Ventures, Construct Capital, IVP, and SAIC. Founded by Baiju Bhatt, co-founder of Robinhood, Cowboy Space initially aimed at space-based solar power but pivoted to space data centers. The company plans to integrate these data centers into rocket second stages, with a launch anticipated by the end of 2028.