Modeled effects of a 1-megaton nuclear detonation approximately 500 kilometers above Earth.

[william]

A single nuclear explosion in space could disable 98% of satellites in low Earth orbit within just one week, according to a new scientific study done by researchers at the University of Wisconsin–Madison and Princeton University.

https://twitter.com/x/status/2120220976558567854

Effects of a Nuclear Detonation in Low Earth Orbit

More than 13,000 satellites operate in low Earth orbit (LEO), and concern has grown that nuclear weapons could be used in space to target them. Beyond the initial X-ray burst, electrons released by radioactive fission products can become trapped in Earth's magnetic field, repeatedly exposing...

arxiv.org