title: Astronomers probe creation by measuring isotopes.
authors.forename: J
authors.initials: J
authors.lastname: Glanz
mesh_terms: D055580:Astronomical Phenomena; D001256:Astronomy; D003903:Deuterium / Q000737:chemistry*; D006371:Helium / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry; D007554:Isotopes; D008094:Lithium / Q000737:chemistry
chemical_list: D007554:Isotopes; D006371:Helium; D006859:Hydrogen; D008094:Lithium; D003903:Deuterium