The Bible doesn't tell us whether or not there is intelligent life on other planets–although I find nothing in the Bible that would exclude the possibility.
But if there is life on other planets, then God created that life, for God created everything. As the Bible says, "In the beginning God created the heavens and the earth.... Thus the heavens and the earth were completed in all their vast array" (Genesis 1:1; 2:1). Furthermore, if there are beings on other planets that have souls and can know God, then God created them in His image, just as He did us. And you can be sure that He has somehow made it possible for them to know Him.
We may never know for sure if there is life on other planets; the distances to other star systems are almost unimaginably vast. But we do know this: "The heavens declare the glory of God; the skies proclaim the work of his hands" (Psalm 19:1). And we also know that God sees us and knows all about us; as Jesus said, "even the very hairs of your head are all numbered" (Matthew 10:30).
It's interesting to speculate about life on other planets. But God is concerned about our lives right now–as we should be. Have you put your trust in Christ, and are you living for Him? If so, some day you will go to be with Him–and all your questions will be answered.