After a NASA supply rocket explodes, CNBCs Phil Han explains who is still in the race to conquer space. Subscribe to CNBC International: .
View full lesson: On October 4, 1957, the Soviet Union launched the satellite Sputnik .
Which Countries Are Joining The Space Race? Who Pays For Science? Subscribe! Since .
In which John Green teaches you about the Cold War, which was occasionally hot, but on average, it was just cool. In the sense of its temperature. It was by no .