AST SpaceMobile vs. Rocket Lab: Which Space-Based Network Stock Is a Better Buy in 2026?

The article compares two space-focused companies: AST SpaceMobile, which is building a space-based cellular network for standard smartphones, and Rocket Lab, a vertically integrated launch services provider acquiring Iridium Communications. Both are unprofitable and burning cash, but Rocket Lab is recommended as the better buy in 2026 due to its lower valuation (52.9x P/S vs. 188x), stronger balance sheet, and the strategic Iridium acquisition that could position it as a serious SpaceX competitor.