| Under its own gravitational attraction, the cloud collapsed into a rotating disk of matter, called the solar nebula. |
| The inclusions in Allende and other carbonaceous chondrites are thought to be the earliest-formed solids in the solar nebula. |
| The composition of Phoebe should reflect the composition of the region of the solar nebula where it formed. |
| Jupiter's core formed rapidly relative to the rate at which gas was lost from the solar nebula. |
| It is plausible that this methane was trapped initially in the primitive solar nebula in the ices which formed Titan. |
| Thus, meteorites represent a fossil record of the early conditions of the solar nebula. |
