Dear Colleagues, I would like to bring to your attention the *Comparative Tectonics and Geodynamics of Venus, Earth, and Rocky Exoplanet Workshop* This workshop will bring together scientists studying Earth, Venus, and rocky exoplanets to explore the role of key variables such as mass, composition, temperature, atmospheric interaction, and volatiles on tectonic and geodynamic processes, and to compare planetary evolutionary paths within our solar system and beyond. The Comparative Tectonics and Geodynamics of Venus, Earth, and Rocky Exoplanets Workshop will be held May 46, 2015, at Keck Center, Keck Institute of Space Studies, Pasadena, California. *Abstract deadline is **February 26, 2015.* The second announcement, which includes details on conference organization and abstract format, is now available at http://www.hou.usra.edu/meetings/geodyn2015/ Find us also on Facebook at https://www.facebook.com/geodyn15 and with twitter handle #GEODYN15 I hope you will add this exciting, interdisciplinary workshop to your agenda. Please forward this message to your community! On behalf of the organizing committee, Laurent Montesi