The company that Elon Musk is most known for, obviously, is Tesla. It's been extraordinarily successful and made him one of the richest people in the world. But his true love may be SpaceX, the rocket company whose technology may one day be used in getting humans to Mars. But even if interplanetary trips are a long way off, there's no historical precedent for the sheer scale of the outer space dominance that Elon Musk has built out. Between his rockets and his satellite-based internet company Starlink, no one individual has ever completely dominated outer space this way. So where are these businesses going and how do they fit into the Elon empire? On this episode, we speak to three of our Bloomberg colleagues who have covered Musk and his businesses. First, we talk about the history and science of rockets with Bloomberg News reporter Ashlee Vance, the author of the book, When the Heavens Went on Sale: The Misfits and Geniuses Racing to Put Space Within Reach. Then we speak with Dana Hull and Max Chafkin, two of the hosts of Bloomberg's Elon Inc. podcast, about Musk's broader constellation of companies and how they all fit together.