OU joins search for geothermal energy’s holy grail

From an obscure research facility on a forgotten edge of the University of Oklahoma’s North Campus, petroleum engineering professor Saeed Salehi and his students have begun a journey that someday may lead to the doorstep of Earth’s molten core. They are targeting a geological stratum known as the “superhot rock zone,” where temperatures approach 800 degrees Fahrenheit. Finding it is not...