> is there something in the composition of objects that can tell us if something is interstellar in origin? Share of isotopes. - Isotopic analyze at Earth beg

> is there something in the composition of objects that can tell us if something is interstellar in origin? Share of isotopes. - Isotopic analyze at Earth begins countdown from Sun system events, but events on other stars have other timeline and their star also will have other share. Sun is not rare star, but our neighbors stars mostly different. Plus, some of material appear from Novas and Supernovas (it is very like fingerprint of nuke - highly depend on technology available at place where it built and from raw materials from which it built), and it will also be different for thing traveled from other star. Only problem, is that large part of this technology is classified, so scientists will have problems on every step, and some things will be opened to all only in few decades.