On the evening of Jan. 31, 1958, Americans eagerly waited for news as the rocket carrying the Explorer 1 satellite – America’s first – was prepared for launch. The next day’s front-page news declared that the United States was now officially in the Space Age. Discover more about this historic mission that launched 60 years of groundbreaking U.S. space science: http://go.nasa.gov/2E6KLBx #ExploreAsOne | NASA - National Aeronautics and Space Administration