Number 1 (Story #6), September 28, 1990 by Phillip F. Schewe and Ben Stein METEOR COMPOSITION: unlike earth rocks which in the course of time have been melted and recrystallized into different forms, meteors have remained largely unchanged from when the solar system began and even before. Diamonds found in some meteors may have been produced by chemical vapor deposition, a process (also used in making diamonds artificially) that might occur in the outer layers of stars and supernovas. (New Scientist, 15 September, p. 46)