Each line represents a different space mission, highlighting notable missions, including those from different countries, those of historical significance, and those which have failed. (The map doesn't seem to make note of the recent LCROSS mission, where a rocket plowed into the moon to probe for water.)
Did you know there have been three more missions to Venus more than Mars (43 to 40)? Check out the whole thing for yourself here.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.