mars nasa MARS soil is toxic

Mars is a cold desert world. It is half the size of Earth. Mars is sometimes called the Red Planet. It's red because of rusty iron in the ground. Like Earth, Mars has ...

Mars is a cold desert world. It is half the size of Earth. Mars is sometimes called the Red Planet. It’s red because of rusty iron in the ground. Like Earth, Mars has …

Mars is a cold desert world. It is half the size of Earth. Mars is sometimes called the Red Planet. It’s red because of rusty iron in the ground. Like Earth, Mars has …

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