Kardashev Type III civilizations could be rare

By Franck Marchis, Senior scientist and Science outreach manager

These two papers by J.T. Wright’s group were posted today on astro-ph

The Ĝ Infrared Search for Extraterrestrial Civilizations with Large Energy Supplies. I. Background and Justification

J. T. Wright, B. Mullan, S. Sigurðsson, M. S. Povich

http://arxiv.org/abs/1408.1133

The Ĝ Infrared Search for Extraterrestrial Civilizations with Large Energy Supplies. II. Framework, Strategy, and First Result

J. T. Wright, R. Griffith, S. Sigurðsson, M. S. Povich, B. Mullan

http://arxiv.org/abs/1408.1134

Based on the analysis of WISE and Spitzer data, the authors concluded that “Kardashev Type III civilizations (a civilization that extracts fusion energy, information, and raw-materials from multiple solar systems) are very rare in the local universe”.

Read the rest at CosmicDiary.org