Elon Musk’s satellite network Starlink is on track to beam broadband internet everywhere in the world except polar regions by August, he said on Tuesday.

Space Exploration Technologies Corp. has launched more than 1,500 satellites so far and has Starlink operations in about a dozen countries, Musk said during a presentation at the Mobile World Congress conference. That’s costing a lot. SpaceX’s total investment in the network will be between $5 billion and $10 billion before cash flow is positive, he said.