Almost everything you could want to know about Callisto.
World of Tanks Link: https://tanks.ly/2UjEZq0 and use the code TANKMANIA for: - Excelsior (Tier 5) - 250k credits - 7 days premium access. Plus 3 rental tanks for 10 battles each: - Tiger 131 (Tier 6) - Cromwell B (Tier 6) - T34-85M (Tier 6)

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Image Credits: NASA
Music Credit: Craig Conard - https://www.craigconard.com/