December 31, 2021 The Dynamics of the Transition From Kardashev Type II to Type III Galaxies Favor Technosignature Searches in the Central Regions of Galaxies→ December 31, 2021/ ScienceSites J.T. Wright, J. Carroll-Nellenback, A. Frank, and C. Scharf (2021). Research Notes of the AAS, 5, 141.Read More