‘Hypatia’ Stone Contains Compounds Not Found in the Solar System
>  A new study led by geologists at the University of Johannesburg found that compounds in the Hypatia stone are distinct from anything discovered in the solar system. The researchers therefore conclude that parts of the rock formed before the solar system, and if these compounds are not presolar, the prevailing idea that the solar system formed from a nebula of homogenous gas is called into question.Couldn't it have come from outside our solar system, in which case it is pretty much irrelevant whether it is presolar or not? Granted, that would also make it pretty exciting :-)It seems a bit premature to question the formation theory of the solar system, based on a single rock from which we don't know if it even formed inside the solar system.