Stupid question, but what international treaties currently regulate private citizens and corporations when it comes to space? Like, who can claim which orbits? Is this just first come, first serve? What would happen if someone crashes Starlink satellites, for instance by putting projectiles on a collision course?

Edit, found an interesting link: https://www.spacelegalissues.com/orbital-slots-and-space-con...

> The geostationary orbit is part of outer space and, as such, the customary principle of non-appropriation and the 1967 Space Treaty apply to it. The equatorial countries have claimed sovereignty, then preferential rights over this space. These claims are contrary to the 1967 Treaty and customary law. However, they testify to the concern of the equatorial countries, shared by developing countries, in the face of saturation and seizure of geostationary positions by developed countries. The regime of res communis of outer space in Space Law (free access and non-appropriation) does not meet the demand of the developing countries that their possibilities of future access to the geostationary orbit and associated radio frequencies are guaranteed. New rules appear necessary and have been envisaged to ensure the access of all States to these positions and frequencies.