The atmosphere is a shield that keeps the planet safe from space.

If we didn’t have atmosphere, like on our moon, life on Earth could not exist.

If Earth had too much atmosphere, like on Venus, life would also have a hard time.

Earth appears to have just the right amount of atmosphere to support life.

Select a planet to learn more about its atmosphere

  • The Moon

    The moon has almost no atmosphere at all

  • Earth

    Earth’s atmosphere allows for life to thrive

  • Venus

    Venus has way too much atmosphere!

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