Nope… But I can’t think of any good reason why we have not.
It could go either way but both have very interesting theological implications.
God created the heavens and the Earth. We believe that our God created EVERYTHING. That means all of the observable and observable, infinite universe.
How do we know that in all of that, he created us alone on this tiny planet?
How do we know that he didn’t create life on another planet as well?
If he did, would Christ have to die again and again on any other planet?
Or, if He did, how do we know that perhaps the first parents on another planet never disobeyed God and live there still in His presence in their own Eden?
It can turn into mind boggling speculation. We cannot prove or disprove the existence of something we cannot observe, so we tend to speculate. But let us further speculate that we eventually observe the assistance of intelligent life other than us. Many will proclaim that s proof that religion has been wrong all along, but that in itself does not affect our faith. If God Created EVERYTHING, then why not others as well?
We will probably never know for sure in this life.
Keep the faith!