NASA marks 57th anniversary of Vanguard satellite launch … it’s still orbiting today

Vanguard 1, the world’s first solar-powered satellite, launched on 17 March 1958. It was designed to test the launch capabilities of a three-stage launch vehicle and the effects of the environment on a satellite and its systems in Earth orbit.

It was the second US satellite in orbit, following Explorer 1, and remains the oldest artificial object orbiting Earth to this day. 

Bill Condie

Bill Condie

Bill Condie is a science journalist based in Adelaide, Australia.

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