22 FAQs : Uranus, Neptune, Pluto (The Astronomy Cafe)

NASA/NSSDC Facts about Uranus, Neptune, Pluto

Pluto Data (NinePlanets),

Neptune Data (NinePlanets),

Uranus Data (NinePlanets)

JPL Mission Archive

Uranus Images

Neptune Images

Pluto Pictures

 Back to the Astronomy Cafe - 365 of the most popular questions since 1996. Over 1 million page requests!

Beginner:

  1. [Updated]Could you give some details about Pluto?
  2. [Updated]Has Pluto been demoted to the status of a non-planet?
  3. [Updated]If the orbits of Neptune and Pluto intersect, will they ever collide?
  4. Why are there brush strokes across Miranda's surface seen by Voyager 2?
  5. Where the satellites of Uranus created before or after the planet got tilted?
  6. How big is Uranus?
  7. Which planet was named after King George III of England?
  8. What have been the historical estimates for the mass of Pluto?
  9. Why is Uranus tilted on its side unlike the Earth?
  10. Will Triton someday crash into Neptune because it rotates backwards?
  11. Does Neptune have oxygen in its atmosphere?
  12. How bright is the Sun as seen from Pluto at perihelion?
  13. What objects have been explored outside Pluto's orbit?
  14. How often do the orbits of Neptune and Pluto cross?

Intermediate:

  1. Why does Neptune emit more energy than it receives from the Sun?
  2. Why are Neptune's rings less dense on one side of the planet than the other?
  3. Where is the center of mass of the Pluto-Charon system located?

 

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