SANTA CLARA, Calif.--(BUSINESS WIRE)--Oklo Inc. (“Oklo”), a fast fission clean power technology and nuclear fuel recycling company, has successfully completed the second phase of the Thermal Hydraulic Experimental Test Article (“THETA”) testing campaign in collaboration with Argonne National Laboratory. THETA is a sodium fixture with world-class instrumentation installed at Argonne’s Mechanisms Engineer Test Loop facility. The THETA testing campaign is strategically focused on key thermal-hydraulic behav ...