Since the beginning of the space race, only four countries have successfully accomplished missions to the moon.
These historical maps tell the story of the USSR, and how its territorial expansion and contraction is linked to present day geopolitical events.
Who has led the world's 15 most powerful countries over the last 50 years? This visual looks at world leaders from 1970 to today.
This intense animation plots data on nearly 70 years of arms sales, to compare the influence of the two superpowers from the Cold War to modern...