More surprising was the success of the launch, which makes North Korea the tenth member of the world’s “Space Club” (the ninth member was Iran, which successfully launched its Safir rocket in 2008). The Unha-3, a three-stage rocket weighing 92 tons, follows the Unha-2, which failed spectacularly in 2009, so the evident progress that North Korea has made in its missile technology in such a short period has shocked governments around the world.