Tags: Artificialsatellite, Satellite.
Explorer 5 was a United States satellite with a mass of 17.24 kg.It launched atop a Juno I rocket on August 24 1958 from Launch Complex 5 but failed when the rocket’s first stage collided with its second stage after separation causing the upper stage firing angle to be off.Explorer 5 had been intended to be one of two satellites used to gather data for Project Argus.