Mercury, the planet closest to the Sun, is the second
smallest planet in the solar system, Pluto being the
smallest. If Earth were the size of a baseball Mercury
would be a golf ball.
Because Mercury is so close to the Sun, temperatures, during the day,
can reach a scorching 425°C… hum! You could bake a cake at this
temperature! And since this planet has hardly any atmosphere
to keep in the heat, temperatures at night can drop to a frigid
183°C below zero! Because of its very thin atmosphere, humans
would not be able to live on Mercury.
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