Which of these spheres is as large as the Soviet satellite Sputnik?

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Although Sputnik’s launch in 1957 was a momentous occasion that shocked America into joining the Space Race, that doesn’t mean the satellite itself was particularly large. According to National Geographic, it was about the size of a basketball.
Bettmann/Getty Images
Bettmann/Getty Images
Which of these spheres is as large as the Soviet satellite Sputnik?
- Basketball
- Disney World’s Epcot center
- Softball
- Medicine ball
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