It's the 50th anniversary of the launch of Sputnik.
Russian engineers say back then, they had no idea sending the world's first artificial satellite into orbit would have such an impact.
NASA Administrator Michael Griffin says the Sputnik accomplishment was responsible for the creation of the American space program, spurring the U.S. to land a man on the moon a little over a decade later.
These days, the competition between the U.S. and Russia has become more of a three-legged space race.
Russian spacecraft now ferry crews and cargo to the International Space Station and cooperate on other missions.
Yesterday, NASA and the Russian Space Agency agreed to put Russian scientific instruments on board U.S. probes.
Griffin says the two nations can go further together than either can go