How Many Planets are in the Universe? (A Staggering 22 Sextillion!)
How Many Planets are in the Universe? (A Staggering 22 Sextill…
May 2, 2019
skiesandscopes.com
2.7K views · 289 reactions | Since NASA opened for business in 1958 it has used a variety of instruments to study space and the heavenly bodies that inhabit it. Do you know how many planets in this solar system have been observed by NASA spacecraft in those years? | NASA's Johnson Space Center | Facebook
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2.7K views · 289 reactions | Since NASA opened for business in 195…
2.7K views2 weeks ago
FacebookNASA's Johnson Space Center
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