The Lord created many worlds and keeps creating them.

29. And he beheld many lands; and each land was called earth, and there were inhabitants on the face thereof.
33. And worlds without number have I created and I also created them for mine own purpose; and by the Son I created them, which is mine only Begotten.
38. And as one earth shall pass away and the heavens thereof even so shall another come; and there is no end to my works, neither to my words.
Moses 1:29, 33, 38

We are not the only earth in the universe where God’s children live. And as they pass away, He creates more. How incredible is that.