Authors: Felisa Wolfe-Simon; Jodi Switzer Blum; Thomas R Kulp; Gwyneth W Gordon; Shelley E Hoeft; Jennifer Pett-Ridge; John F Stolz; Samuel M Webb; Peter K Weber; Paul C W Davies; Ariel D Anbar; Ronald S Oremland Journal: Science Date: 2010-12-02 Impact factor: 47.728