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

4.8K views · 279 reactions | How do planets get their names? Aside from Earth, planets in our solar system were named after ancient gods. Today, the job of naming falls to the International Astronomical Union, the internationally recognized authority for naming celestial bodies. You can see the history of each planet's name at https://solarsystem.nasa.gov/planets/ | NASA Solar System Exploration | Facebook

NASA Solar System Exploration on Reels | Facebook