Explorer 1: First U.S. Satellite
How the US Launched Its First Satellite
How America's First Satellite Helped Create NASA
Sputnik, the world's first satellite launched 60 years ago today
Explorer 1: America’s First Satellite
Sputnik 1 - Earth’s First Artificial Satellite
That Time the U.S. Accidentally Nuked Britain's First Satellite
The Sputnik 1 Launch: The First Artificial Satellite To Enter Earth's Orbit | Mach | NBC News
Explorer 1 Launch, First U.S. Satellite
LAUNCH OF EXPLORER 1 SATELLITE 1958 "THE BIG PICTURE" EPISODE 71512
What is a Satellite?
Today in History: U.S. successfully launches its first satellite into orbit
The Interservice Rivalry that Delayed America's First Satellite Launch
Earth Satellite Launched by U.S. Army
World's First City Discovered by U.S. Spy Satellite
U.S. spy satellite launched into space
40 Years Ago, NASA Sent A Message To Aliens — Here's What It Says
Sputnik Remembered; First Satellite Launched 4 Oct. 1957
Satellite A Bust. Rocket Blows Up In First U.S 1957 Newsreel
First British Satellite Launch