built over 70,000 http://blog.bit9.com/wp-content/uploads/2012/03/nuclear-warheads.jpg
47,000 miles, just in case we got involved with the war so military could move faster
North American Aerospace Defense headquarters. In Cheyenne mountains 2,500 feet in. Still used today
Shot down in 1960
made so the president can alert the public of war threats, crisis.
National Aeronautics and Space Administration
First American Satellite to reach orbit. Van Ellen radiation belt
Functions for 3 years
Edwin "Buzz" Neil was the first one to step on the moon. His crew person was orbiting around the moon.
People feared this because they didn't know what else could be coming after the Sputnik
Closest thing to a man being on the moon
first spacecraft to actually land on the moon