Saturn's moon Titan discovered - March 25, 1655
This Day in History Class - Podcast autorstwa iHeartPodcasts and HowStuffWorks
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On this day in 1655, Christiaan Huygens first observed Saturn's largest moon, Titan.
This Day in History Class - Podcast autorstwa iHeartPodcasts and HowStuffWorks
On this day in 1655, Christiaan Huygens first observed Saturn's largest moon, Titan.