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How is earth different from other planets?

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In the solar system, Earth is the only planet that harbors any type of life. Most living things on the planet require oxygen to survive. Earth is the only place scientists know of with enough oxygen in its atmosphere to support life. The closest planets to Earth are either too hot or too cold to support an oxygen-filled atmosphere. read more

The other planets of the solar system are fascinating worlds. But the crown jewel of the solar system is planet Earth. It took us a journey to the moon to really appreciate how beautiful and fragile the Earth is, almost hanging in the darkness of space. read more

Like most planets Earth's earliest atmosphere was dominated by hydrogen and helium. These two elements are by far the most abundant in the Universe. About 92% of the atoms created by the big bang were hydrogen, and most of the rest were helium. read more

The Earth is unlike every other planet in the Solar System in a number of different ways. It is the only planet that has an atmosphere containing 21 percent oxygen. It is the only planet that has liquid water on its surface. read more

Thus far, scientists have been unable to detect intelligent life on other planets and believe that human beings are the only intelligent life in the universe. In the solar system, Earth is the only planet that harbors any type of life. read more

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