Happy Birthday Vanguard 1, and Welcome Home? - Universe Today
Jim Oberg has written a very interesting article at MSNBC.com, commemorating the 50th anniversary of the launch of mankindâ€™s fourth artificial satellite, Vanguard 1. While it is no longer functioning or communicating, it is the oldest satellite still in orbit. Jim says, â€œVanguard 1 was the first artificial earth satellite powered by solar cells, and … Continue reading "Happy Birthday Vanguard 1, and Welcome Home?"
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