7 FAQs about Mercury (The Astronomy Cafe)

Basic Facts: NASA/NSSDC Fact Sheet

Pictures: NASA/NSSDC Archive, JPL/Project Space

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

Beginner:

  1. When can both Mercury and Saturn be seen, and where?
  2. Who discovered Mercury?
  3. Why don't Mercury and Venus have moons?
  4. Where would the best place be for an outpost on Mercury?

Intermediate:

  1. Why doesn't Mercury rotate?
  2. Do you know the dates for the double sunset on Mercury?
  3. Are their ice caps on Mercury?

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