Question: Is Ganymede in the Milky Way galaxy?, Answer:Yes, Description of Milky Way: Spiral galaxy containing our Solar System, Fact1: Ganymede is a moon of Jupiter., Fact2: Jupiter is the largest planet in our solar system., Fact3: The solar system is part of the Milky Way galaxy.
Step1: What does Ganymede orbit?, Step2: What larger astronomical system is #1 part of?, Step3: Is #2 located in the Milky Way?, Wikipedia page for step 1: Ganymede (moon), Wikipedia page for step 2: Solar System, Wikipedia page for step 3: Milky Way, not_definitive_answer: False, incorrect_answer: False