What i learnt in English unit 9

I learnt that people could live on Mars, but of course that is in the future... People on Mars will have to recycle the air with a special equipment, and keep the air from escaping. Scientists said that they will live in the spacecraft that brought them there. They will need a rocket to push the spacecraft. The food they grow will have to be grown in greenhouses. There the people will build inflatable houses. There's more information about it but i cannot possibly remember everything! So, byebye.