You are given a sentence in English. Your job is to translate the English sentence into Japanese.

Now, the Moon has no atmosphere, so micrometeorites come in continuously, and the whole surface of the Moon is covered with powder now, because for four billion years it's been bombarded by micrometeorites, and when micrometeorites come in at about 20 to 60,000 miles an hour, they vaporize on contact.
月に大気はありませんから微小隕石が絶えず降り注いでいます月の表面が粉末で覆われているのは微小隕石が 40億年間降り注いだせいです微小隕石は時速3 ～ 10万キロの速度で衝突し蒸発します