https://www.universetoday.com/135701/scientists-propose-new-kind-planet-smashed-torus-hot-vaporized-rock/Rocky planets like Earth are accreted from smaller bodies over time. Objects with high energy and high angular momentum could form a synestia, a transient stage in planetary formation where vaporized rock orbits the rest of the body. In this image, each of the three stages has the same mass. Image: Simon Lock, Harvard University