SpaceX’s broadband satellite internet, Starlink, is still in beta, but already has over 10,000 customers. The fledgling service is expected to be a cash cow for SpaceX, bringing in as much as $30 billion a year — more than 10 times the annual revenue of its existing rocket business. This revenue will be used to fuel Elon Musk’s ultimate goal of building a colony on Mars. Eventually, Starlink may even keep us connected on the Red Planet.

Video timeline: 00:00​ – Introduction 02:24​ – Understanding Starlink 07:15​ – SpaceX’s golden ticket 10:05​ – Challenges 16:12​ – Future of Starlink