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Q:

Why is planet Earth the only planet with life?

A:

Earth is the only planet that humans know has life, however it is possible that many planets outside of our solar system have life and humans just don't know it yet! Many scientists believe that there probably is other life in the universe and NASA has even created an entire mission dedicated to searching for life called the Kepler Mission. Planets in our solar system other than Earth cannot have life for different reasons. For example, Mercury and Venus are too hot. Uranus and Neptune are too cold for life.

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