[#item_full_content]LOUISVILLE, Colo.–(BUSINESS WIRE)–Sierra Space, a leading pureplay commercial space company building the first end-to-end business and technology platform in space with $3.4 billion in customer contracts, announced today it has closed a $290 million Series B funding round. The round brings the company’s total capital raised to $1.7 billion, the largest ever capital raise by a commercial space company over the combined Series A and B rounds. This latest milestone elevates Sierra Space’s valuat