Our own planet,Earth,is becoming more and more crowded and polluted
Hopefully,we can start again and build a better world on Mars.
of all,transport should be much better.In a very short time,space shuttles will travel at half speed of light.
Humans meed food,water and air to survive
Scientists hope to plants that can grow on Mars.These plants will produce the food and oxygen that we need.
However,it is not certain if these plants will be able to produce water
The gravity on Mars is only about three-eights of the gravity on Earth.Humans on Mars would have to wear special boots to make themselves heavir
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