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What Is the Sombrero Galaxy? And Why Is It So Majestic?
What Is the Sombrero Galaxy? And Why Is It So Majestic?

Sombrero, or sombrero de charro, is the traditional, wide brimmed, Mexican horseman hat. So what...

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Sputnik and the Whole Story of Artificial Satellites
Sputnik and the Whole Story of Artificial Satellites

On 4 October 1957, the Soviet Union launched Sputnik, the first-ever artificial satellite in space....

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