Ages from isotopes. Yin’s laboratory at UC Davis carries out highly precise measurements of isotopes from meteorites, determining their age and composition. Aluminum-26 decays to stable magnesium-26 ...

The discovery of aluminum-42 suggests that even heavier aluminum isotopes could exist, says Paul-Henri Heenen of the Free University of Brussels in Belgium. And other elements, ...

While SLRs probably existed in the part of the filament where the Sun and Solar System formed, the meteorite samples contained too much of a particular aluminum isotope for the interstellar medium ...