How do planets get moons? - The Planetary Society

6/30/2022 12:00:00 AM2 years 10 months ago

Here are the distinct ways in which the moons of our Solar System formed.

Why dont Mercury and Venus have a moon? Colossal planetary collisions were common in the chaotic early Solar System, but they dont guarantee a moon at all. Scientists think Mercury also may have ex… [+2222 chars]

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