Updated

Updated · airandspace.si.edu · Jun 30

U.S. Space Force Tracks Millions of Debris Pieces, Predicting Collisions to Protect Satellites

Updated

Updated · airandspace.si.edu · Jun 30

U.S. Space Force Tracks Millions of Debris Pieces, Predicting Collisions to Protect Satellites

1 articles · Updated · airandspace.si.edu · Jun 30

The U.S. Space Force’s Space Surveillance Network monitors active satellites and larger debris, warning operators early enough to move spacecraft out of harm’s way.
Debris orbiting Earth can exceed 17,500 mph, and even small fragments can cripple a satellite, raising the risk of service disruptions across daily satellite-dependent activities.
The network combines satellites, ground radars and telescopes, including the Space Surveillance Fence rebuilt in the Pacific in 2020, Maui observatories and Canada’s Sapphire satellite launched in 2013.
The threat is growing because some debris remains in orbit for hundreds of years, and NASA’s 1978 Kessler Syndrome model warned that collisions could trigger a runaway cascade that makes key orbits unusable.
Spacefaring nations have agreed to limit new debris, while U.N. guidelines call for retired geostationary satellites to move at least 180 miles above the 22,240-mile orbit into graveyard orbits.

Sources

Have thousands of new satellites already pushed Earth's orbit past a safe tipping point, making a collision cascade inevitable?

Could advanced debris removal tech become a weapon, used to selectively clear orbits and control access to space?

As space cleanup becomes a billion-dollar industry, who is financially responsible for the orbital trash left by nations and corporations?

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