The Bible is about human life on our Planet & about Heaven (not a planet, but a eternal place). We got to go somewhere else this Earth is run'in out of Space , so concentrate of your education you'll need it there too. Earth's astronauts will be searching the universe for Other forms of life which may or may not ever happen. Of all the books written most of the important Stuff originated and comes from 'Scripture' its shown even in several Hollywood movies. My dad a senior (passed) never spoke about life on other planets, and now myself a senior too, soon to leave this planet ain't never realize other life outside of our earth.
Not a word, but that doesnt mean there isnt. The Bible is a guide for us humans here on earth, not a teatise on 'everything there is to know about God'. There are undiubtedly MANY things we dont know about Him so He could easily have created other worlds. Who knows.