At https://phys.org/news/2024-09-moon-captured-space-collision-particles.html … it seems the idea the moon was captured by Earth may be making a comeback. Various ‘missions’ to the Moon have come back with a lot of rock and soil. Chemical and isotopic analysis show a similarity to rock and soil on the Earth. Hence, for awhile the dominant theory has been that the Moon formed after a collision between the Earth and a larger planet sized body, from the same ingredients as Earth. What about the ingredients of the planet that crashed into the Earth?
Two Penn State researchers say there is a possibility that the Moon was captured during a close encounter – somewhat like Triton, a moon of Neptune.
At https://phys.org/news/2024-09-ryugu-samples-previous-ideas-formation.html …. we are told that 2 million years after the formation of the solar system, the first carbonaceous chondrites made of dust, chondrules, early condensates and iron nickel grains, agglomerated outside the orbit of Jupiter. By this time another 2 million years had passed and chondits were formed by photoevaporation. However, asteroid Ryugu may not have strayed too far from its place of origin to its current Near Earth trajectory. It may have been formed near Jupiter. The Hayabasu 2 probe collected samples from Ryugu a few years ago.