The progress in the space development project is incredible with its technology, but I don't think humans should alter the earth nor the space's environment.
I would like to try living on another planet, but I want to take care of the earth's environment.
ご質問ありがとうございます。
"The progress in the space development project is incredible with its technology,"＝「宇宙開発事業の進歩は技術的に凄い」
"but I don't think humans should alter the earth nor the space's environment."＝「でも私は人間が地球や宇宙の環境に手を加えるべきではないと思う。」
"I would like to try living on another planet,"＝「他の惑星に住んでみたいけど」
"but I want to take care of the earth's environment."＝「私は地球の環境を大事にしたい。」
ご参考になると幸いです。
アメリカ合衆国 
