Re the scripture which may indicate that there may be no other earth like planets in the universe. The following is from Genesis, Chapter 1. Note it is said he made the stars also and set them in the firmament to give light upon the earth.
1:14
And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:
1:15
And let them be for lights in the firmament of the heaven to give light upon the earth: and it was so.
1:16
And God made two great lights; the greater light to rule the day, and the lesser light to rule the night: [he made] the stars also.
1:17
And God set them in the firmament of the heaven to give light upon the earth,
And, therefore, of course, that's the only reason anything is in space, just and only to give us light, right?
The more I read lines of scripture, the more I am convinced that the people who wrote this stuff were doing some pretty drugs.