by Elio — Tom Brock (1926−2021) can rea­di­ly be con­sider­ed the fa­ther of ex­tre­mo­phile mi­cro­bio­logy. He pio­neered the study of high tem­pe­ra­­ture-lov­ing mi­crobes, by in­ves­ti­gat­ing, in a near­ly fro­lic­some way, the hot springs of Yel­low­stone Park. He car­ried out this work pret­ty much alone, with both ex­pe­ri­men­tal in­ge­nuity and con­cept­ual gusto,...