Satellite Tracker

As of early 2026, approximately 11,000 active satellites orbit Earth, plus about 4,000 defunct satellites and 2,500 spent rocket bodies. The total number of tracked objects larger than 10 cm exceeds 36,500. SpaceX's Starlink constellation alone accounts for over 6,200 of the active satellites — more than half.

SpaceX's Starlink is by far the largest satellite constellation with over 6,200 satellites in low Earth orbit as of 2026, serving 4+ million subscribers in 100+ countries. It is approved for up to 42,000 satellites. The next largest is OneWeb with 634 satellites, followed by Planet Labs with ~200 Earth-imaging satellites.

The United States dominates with approximately 7,800 active satellites (about 70% of all active satellites), driven primarily by SpaceX's Starlink constellation. China is second with ~900, followed by the United Kingdom (~700, mostly OneWeb), Russia (~220), and Japan (~110).

ESA estimates over 36,500 tracked objects larger than 10 cm, about 1 million objects between 1–10 cm, and over 130 million objects smaller than 1 cm. The worst single debris event was China's 2007 ASAT test, which created 3,500+ trackable fragments that are still in orbit. Debris travels at 7–8 km/s in LEO — fast enough for a 1 cm object to damage a satellite.

The Kessler Syndrome is a theoretical scenario where the density of objects in orbit becomes high enough that collisions generate more debris, which causes more collisions, creating a cascading chain reaction. This could render certain orbital altitudes unusable for generations. The 2007 Chinese ASAT test and 2009 Iridium-Cosmos collision demonstrated how quickly debris can proliferate.

Starlink (SpaceX) has 6,200+ satellites operational with 4M+ subscribers and ~$6.6B revenue. Amazon Kuiper has launched only 4 prototype satellites so far but has invested $10B+ and secured 92 launch contracts. Kuiper must deploy 50% of its 3,236-satellite constellation by 2026 per FCC requirements. Starlink has a massive first-mover advantage, but Amazon's integration with AWS cloud services could differentiate it for enterprise customers.

Satellites serve many purposes: Communications (62% — internet, TV, phone), Earth Observation (12% — mapping, climate monitoring), Technology Demonstration (7.5%), Military/Intelligence (6% — reconnaissance, early warning), Direct-to-Cell/IoT (5%), Science & Research (4%), Navigation (1.5% — GPS, Galileo), and Weather (1%). Communications dominates due to mega-constellations like Starlink.