Vanguard I satellite marks 50 years in orbit – Engadget

 

It may not have been the first, but Vanguard I does have the distinction of being the oldest satellite still in orbit, and it’s now set to mark its 50th anniversary on March 17th. It can lay claim to being the the very first solar-powered satellite, however, and it has no shortage of accomplishments under its belt

Vanguard I satellite marks 50 years in orbit – Engadget

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