Top 100 Most Important Operational Satellites in 2025
SpaceX’s Starlink constellation includes about 4,500 satellites in low Earth orbit, delivering global internet via Ku/Ka-band and laser links. James Webb Space Telescope launched in 2021, capturing deep infrared images with a 6.5-meter mirror. OSIRIS-REx returned asteroid Bennu samples to Earth in 2023. New Horizons continues exploring beyond Pluto, now at roughly 55 AU from the Sun.