Pioneer 1 satellite National Air and Space Museum

This is a replica of a Pioneer satellite intended to orbit the moon. Pioneer 1 was launched on October 11, 1958, but the final velocity was insufficient to escape the earth's gravity. The resulting trajectory took the satellite to an altitude of 70,700 mi.

The Pioneer Interstellar Missions and Beyond

From Points of Light to Worlds: UA Explores the Solar System

Satellite turns 50 years old in orbit!

The World's First Artificial Satellite

Pioneer 1 – NASA's First Space Mission

Sirius FM-4 Broadcasting Satellite Donated to the Smithsonian's National Air and Space Museum

Voyager spacecraft detects 'persistent hum' beyond our solar system

DARPA'S 60-Year Space Adventure - Issuu

Pioneer 10/11 National Air and Space Museum

Able 2 (Pioneer 1) - NASA Science

Pioneer 10 Facts for Kids

Vanguard 1, Oldest Manmade Satellite, Turns 60 This Weekend - AmericaSpace