LEO Broadband Satellite Constellations

Low-Earth orbit broadband constellations provide high-speed, low-latency internet anywhere on Earth via networks of thousands of small satellites at 300-600 km altitude. SpaceX Starlink dominates with 6,000+ operational satellites serving 4+ million subscribers, delivering 100-200 Mbps with 20-40ms latency. Amazon's Project Kuiper launched prototype satellites in late 2024 and plans to deploy 3,236 satellites. OneWeb (Eutelsat) provides complementary coverage.

LEO broadband is bridging the digital divide for rural and remote areas where terrestrial broadband is uneconomical. It also provides resilient connectivity for maritime, aviation, and military applications. Starlink's role in Ukraine demonstrated the military value of space-based internet that cannot be disabled by ground attacks on infrastructure.

The US dominates LEO broadband through SpaceX's massive first-mover advantage and vertical integration (building both satellites and launch vehicles). Amazon Kuiper introduces competition but faces the challenge of building a constellation from scratch while SpaceX continuously upgrades an operational network. China is developing its own LEO constellation (Guowang), creating a geopolitical dimension to space-based internet.