Satellites in 1956: The U.S. announced plans to launch small, unmanned satellites which will circle the earth at an altitude of 200 to 300 miles at the speed of 18,000 mph. They predicted that a ...

Planning a cross-country road trip? Bookmark this list of the top U.S. attractions, state by state. The United States of attractions Did you know the United States is the third largest country in the ...