Hyperthermophiles were first discovered by Thomas D. Brock in 1965, in hot springs in Yellowstone National Park, Wyoming [REF].
Although no hyperthermophile has yet been discovered living at temperatures above 122 °C, their existence is very possible (Strain 121 survived being heated to 130 °C for two hours, but was not able to reproduce until it had been transferred into a fresh growth medium, at a relatively cooler 103 °C).