Sourcery: Impulse Space's $500M Raise, Helios Speed, and the Future of GEO

A $500 million Series D wasn’t a victory lap for Impulse Space—it was a launchpad for moving faster in GEO, defense, and beyond. In this summarized episode of Sourcery, host Molly O'Shea talks with president and COO Eric Romo about how the company’s oversubscribed round pushed total funding above $1 billion, why time-to-orbit can matter more than hardware cost, and how Helios aims to deliver spacecraft to geosynchronous orbit the same day, about eight hours after launch. You’ll also hear how Mera helped Impulse prove out rapid spacecraft development, why the defense market became a key wedge, and how Teravan could change rideshare missions for smaller GEO spacecraft. Romo shares lessons from his early SpaceX days, making the case for insourced hardware development, fast iteration, and manufacturing discipline in hard tech. Get the key ideas from the full episode in a minutes-long recap—listen now to get the key ideas in minutes.