17 billion Earth sized planets in our Milky Way galaxy alone

See how the 17 billion Earth-size planets of the Milky Way galaxy stack up in this SPACE.com infographic.
Source SPACE.com: All about our solar system, outer space and exploration

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One Response to “17 billion Earth sized planets in our Milky Way galaxy alone”

  1. gregdougall Says:

    So there about 17 billion planets about the size of Earth, and 25 billion planets 1.25-2 times the size of Earth. That’s 42 billion planets in our galaxy that are somewhat like Earth. And what about moons? Don’t even get me started!

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